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157131256003 = 1719148392749
BaseRepresentation
bin1001001001010111000…
…0001011000011000011
3120000120202011212001021
42102111300023003003
510033301100143003
6200103552050311
714231600432041
oct2222560130303
9500522155037
10157131256003
1160703552357
1226552b33997
1311a81b20777
147868917391
154149bc42bd
hex2495c0b0c3

157131256003 has 8 divisors (see below), whose sum is σ = 167245344000. Its totient is φ = 147113953920.

The previous prime is 157131256001. The next prime is 157131256013. The reversal of 157131256003 is 300652131751.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 157131256003 - 21 = 157131256001 is a prime.

It is a super-2 number, since 2×1571312560032 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 157131256003.

It is not an unprimeable number, because it can be changed into a prime (157131256001) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 24193128 + ... + 24199621.

It is an arithmetic number, because the mean of its divisors is an integer number (20905668000).

Almost surely, 2157131256003 is an apocalyptic number.

157131256003 is a deficient number, since it is larger than the sum of its proper divisors (10114087997).

157131256003 is a wasteful number, since it uses less digits than its factorization.

157131256003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48392957.

The product of its (nonzero) digits is 18900, while the sum is 34.

Adding to 157131256003 its reverse (300652131751), we get a palindrome (457783387754).

The spelling of 157131256003 in words is "one hundred fifty-seven billion, one hundred thirty-one million, two hundred fifty-six thousand, three".

Divisors: 1 17 191 3247 48392749 822676733 9243015059 157131256003