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7139300472 = 233446123899
BaseRepresentation
bin1101010011000100…
…10001010001111000
3200102112212001010000
412221202101101320
5104110130103342
63140231553000
7341630024043
oct65142212170
920375761100
107139300472
113033a49127
121472b2b760
1389a129a65
144ba25bc5a
152bbb8344c
hex1a9891478

7139300472 has 80 divisors (see below), whose sum is σ = 20040867000. Its totient is φ = 2374505280.

The previous prime is 7139300461. The next prime is 7139300503. The reversal of 7139300472 is 2740039317.

It is a super-2 number, since 2×71393004722 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 286779 + ... + 310677.

Almost surely, 27139300472 is an apocalyptic number.

7139300472 is a gapful number since it is divisible by the number (72) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 7139300472, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (10020433500).

7139300472 is an abundant number, since it is smaller than the sum of its proper divisors (12901566528).

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

7139300472 is a wasteful number, since it uses less digits than its factorization.

7139300472 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24378 (or 24365 counting only the distinct ones).

The product of its (nonzero) digits is 31752, while the sum is 36.

The square root of 7139300472 is about 84494.3813043211. The cubic root of 7139300472 is about 1925.5370826785.

Adding to 7139300472 its reverse (2740039317), we get a palindrome (9879339789).

The spelling of 7139300472 in words is "seven billion, one hundred thirty-nine million, three hundred thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 9 12 18 24 27 36 54 72 81 108 162 216 324 461 648 922 1383 1844 2766 3688 4149 5532 8298 11064 12447 16596 23899 24894 33192 37341 47798 49788 71697 74682 95596 99576 143394 149364 191192 215091 286788 298728 430182 573576 645273 860364 1290546 1720728 1935819 2581092 3871638 5162184 7743276 11017439 15486552 22034878 33052317 44069756 66104634 88139512 99156951 132209268 198313902 264418536 297470853 396627804 594941706 793255608 892412559 1189883412 1784825118 2379766824 3569650236 7139300472