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10031257 = 47534027
BaseRepresentation
bin100110010001…
…000010011001
3200212122022001
4212101002121
510032000012
6555001001
7151156435
oct46210231
920778261
1010031257
1157316a5
123439161
132102b72
1414919c5
15d32357
hex991099

10031257 has 8 divisors (see below), whose sum is σ = 10440576. Its totient is φ = 9630192.

The previous prime is 10031251. The next prime is 10031261. The reversal of 10031257 is 75213001.

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 10031257 - 219 = 9506969 is a prime.

It is a super-2 number, since 2×100312572 = 201252234000098, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (10031251) 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, 478 + ... + 4504.

It is an arithmetic number, because the mean of its divisors is an integer number (1305072).

Almost surely, 210031257 is an apocalyptic number.

It is an amenable number.

10031257 is a deficient number, since it is larger than the sum of its proper divisors (409319).

10031257 is an equidigital number, since it uses as much as digits as its factorization.

10031257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4127.

The product of its (nonzero) digits is 210, while the sum is 19.

The square root of 10031257 is about 3167.2159699016. The cubic root of 10031257 is about 215.6677060830.

Adding to 10031257 its reverse (75213001), we get a palindrome (85244258).

The spelling of 10031257 in words is "ten million, thirty-one thousand, two hundred fifty-seven".

Divisors: 1 47 53 2491 4027 189269 213431 10031257