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3080390985 = 3357131149167
BaseRepresentation
bin1011011110011011…
…0000100101001001
321221200022002001000
42313212300211021
522302040002420
61225355245213
7136222614510
oct26746604511
97850262030
103080390985
111340889381
1271b749809
133a1250879
14213171677
15130673690
hexb79b0949

3080390985 has 128 divisors (see below), whose sum is σ = 6386688000. Its totient is φ = 1379738880.

The previous prime is 3080390959. The next prime is 3080390987. The reversal of 3080390985 is 5890930803.

3080390985 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 3080390985 - 25 = 3080390953 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 3080390985.

It is not an unprimeable number, because it can be changed into a prime (3080390987) by changing a digit.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 18445372 + ... + 18445538.

It is an arithmetic number, because the mean of its divisors is an integer number (49896000).

Almost surely, 23080390985 is an apocalyptic number.

3080390985 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

3080390985 is an abundant number, since it is smaller than the sum of its proper divisors (3306297015).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

3080390985 is a wasteful number, since it uses less digits than its factorization.

3080390985 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 468 (or 462 counting only the distinct ones).

The product of its (nonzero) digits is 233280, while the sum is 45.

The square root of 3080390985 is about 55501.2701206017. The cubic root of 3080390985 is about 1455.0188327884.

The spelling of 3080390985 in words is "three billion, eighty million, three hundred ninety thousand, nine hundred eighty-five".

Divisors: 1 3 5 7 9 15 21 27 35 45 63 105 131 135 149 167 189 315 393 447 501 655 745 835 917 945 1043 1169 1179 1341 1503 1965 2235 2505 2751 3129 3507 3537 4023 4509 4585 5215 5845 5895 6705 7515 8253 9387 10521 13755 15645 17535 17685 19519 20115 21877 22545 24759 24883 28161 31563 41265 46935 52605 58557 65631 74649 97595 109385 123795 124415 136633 140805 153139 157815 174181 175671 196893 223947 292785 328155 373245 409899 459417 522543 527013 590679 671841 683165 765695 870905 878355 984465 1119735 1229697 1378251 1567629 2049495 2297085 2612715 2635065 2953395 3259673 3359205 3689091 4134753 4702887 6148485 6891255 7838145 9779019 16298365 18445455 20673765 22817711 23514435 29337057 48895095 68453133 88011171 114088555 146685285 205359399 342265665 440055855 616078197 1026796995 3080390985