Search a number
-
+
380657613 = 37233312381
BaseRepresentation
bin10110101100000…
…101111111001101
3222112021102002010
4112230011333031
51234422020423
6101434451433
712301351650
oct2654057715
9875242063
10380657613
11185964776
12a7593b79
1360b2b5bb
14387ab897
1523642693
hex16b05fcd

380657613 has 32 divisors (see below), whose sum is σ = 607352832. Its totient is φ = 207345600.

The previous prime is 380657611. The next prime is 380657621. The reversal of 380657613 is 316756083.

It is not a de Polignac number, because 380657613 - 21 = 380657611 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (380657611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 158683 + ... + 161063.

It is an arithmetic number, because the mean of its divisors is an integer number (18979776).

Almost surely, 2380657613 is an apocalyptic number.

It is an amenable number.

380657613 is a deficient number, since it is larger than the sum of its proper divisors (226695219).

380657613 is a wasteful number, since it uses less digits than its factorization.

380657613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2745.

The product of its (nonzero) digits is 90720, while the sum is 39.

The square root of 380657613 is about 19510.4488159550. The cubic root of 380657613 is about 724.7332275733.

The spelling of 380657613 in words is "three hundred eighty million, six hundred fifty-seven thousand, six hundred thirteen".

Divisors: 1 3 7 21 23 69 161 331 483 993 2317 2381 6951 7143 7613 16667 22839 50001 53291 54763 159873 164289 383341 788111 1150023 2364333 5516777 16550331 18126553 54379659 126885871 380657613