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4961931 = 313472707
BaseRepresentation
bin10010111011011010001011
3100100002111020
4102323122023
52232240211
6254203523
760114162
oct22733213
910302436
104961931
112889a77
1217b35a3
131049670
149323d9
15680306
hex4bb68b

4961931 has 16 divisors (see below), whose sum is σ = 7279104. Its totient is φ = 2987424.

The previous prime is 4961927. The next prime is 4961939. The reversal of 4961931 is 1391694.

It is not a de Polignac number, because 4961931 - 22 = 4961927 is a prime.

It is a super-2 number, since 2×49619312 = 49241518497522, which contains 22 as substring.

4961931 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4961892 and 4961901.

It is not an unprimeable number, because it can be changed into a prime (4961939) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 480 + ... + 3186.

It is an arithmetic number, because the mean of its divisors is an integer number (454944).

Almost surely, 24961931 is an apocalyptic number.

4961931 is a deficient number, since it is larger than the sum of its proper divisors (2317173).

4961931 is a wasteful number, since it uses less digits than its factorization.

4961931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2770.

The product of its digits is 5832, while the sum is 33.

The square root of 4961931 is about 2227.5392252439. The cubic root of 4961931 is about 170.5625080760.

The spelling of 4961931 in words is "four million, nine hundred sixty-one thousand, nine hundred thirty-one".

Divisors: 1 3 13 39 47 141 611 1833 2707 8121 35191 105573 127229 381687 1653977 4961931