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31056701 = 138092953
BaseRepresentation
bin111011001111…
…0001100111101
32011102211210012
41312132030331
530422303301
63025353005
7524656214
oct166361475
964384705
1031056701
11165923a5
12a498765
136584c60
1441a607b
152ad6ebb
hex1d9e33d

31056701 has 8 divisors (see below), whose sum is σ = 33498360. Its totient is φ = 28622592.

The previous prime is 31056689. The next prime is 31056719. The reversal of 31056701 is 10765013.

It can be written as a sum of positive squares in 4 ways, for example, as 9424900 + 21631801 = 3070^2 + 4651^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-31056701 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31056101) 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, 9041 + ... + 11993.

It is an arithmetic number, because the mean of its divisors is an integer number (4187295).

Almost surely, 231056701 is an apocalyptic number.

It is an amenable number.

31056701 is a deficient number, since it is larger than the sum of its proper divisors (2441659).

31056701 is a wasteful number, since it uses less digits than its factorization.

31056701 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3775.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 31056701 is about 5572.8539367186. The cubic root of 31056701 is about 314.3294748491.

The spelling of 31056701 in words is "thirty-one million, fifty-six thousand, seven hundred one".

Divisors: 1 13 809 2953 10517 38389 2388977 31056701