Search a number
-
+
156934381825 = 521317971032843
BaseRepresentation
bin1001001000101000000…
…1001010000100000001
3120000002000201121110001
42102022001022010001
510032400200204300
6200032240240001
714223660143614
oct2221201120401
9500060647401
10156934381825
1160612404921
12264b9010001
1311a500bc180
14784a70a17b
15413778616a
hex248a04a101

156934381825 has 96 divisors (see below), whose sum is σ = 226439006976. Its totient is φ = 106862837760.

The previous prime is 156934381819. The next prime is 156934381853. The reversal of 156934381825 is 528183439651.

It is not a de Polignac number, because 156934381825 - 23 = 156934381817 is a prime.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55198854 + ... + 55201696.

It is an arithmetic number, because the mean of its divisors is an integer number (2358739656).

Almost surely, 2156934381825 is an apocalyptic number.

It is an amenable number.

156934381825 is a deficient number, since it is larger than the sum of its proper divisors (69504625151).

156934381825 is a wasteful number, since it uses less digits than its factorization.

156934381825 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3083 (or 3078 counting only the distinct ones).

The product of its digits is 6220800, while the sum is 55.

The spelling of 156934381825 in words is "one hundred fifty-six billion, nine hundred thirty-four million, three hundred eighty-one thousand, eight hundred twenty-five".

Divisors: 1 5 13 17 25 65 85 97 103 221 325 425 485 515 1105 1261 1339 1649 1751 2425 2575 2843 5525 6305 6695 8245 8755 9991 14215 21437 22763 31525 33475 36959 41225 43775 48331 49955 71075 107185 113815 129883 169847 184795 241655 249775 275771 292829 535925 569075 628303 649415 849235 923975 1208275 1378855 1464145 2208011 3141515 3247075 3585023 3806777 4246175 4688107 4978093 6894275 7320725 11040055 15707575 17925115 19033885 23440535 24890465 28404413 55200275 60945391 64715209 89625575 95169425 117202675 124452325 142022065 304726955 323576045 369257369 482875021 710110325 1523634775 1617880225 1846286845 2414375105 6277375273 9231434225 12071875525 31386876365 156934381825