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2920469931 = 331031050151
BaseRepresentation
bin1010111000010010…
…1101010110101011
321112112101020121000
42232010231112223
521440120014211
61201443450043
7132241404411
oct25604552653
97475336530
102920469931
111269590315
12696086923
1337708a022
141d9c232b1
151215d4656
hexae12d5ab

2920469931 has 16 divisors (see below), whose sum is σ = 4368632320. Its totient is φ = 1928075400.

The previous prime is 2920469897. The next prime is 2920469953. The reversal of 2920469931 is 1399640292.

It is a happy number.

It is not a de Polignac number, because 2920469931 - 211 = 2920467883 is a prime.

It is a super-2 number, since 2×29204699312 = 17058289235750289522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2920469131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 522295 + ... + 527856.

It is an arithmetic number, because the mean of its divisors is an integer number (273039520).

Almost surely, 22920469931 is an apocalyptic number.

2920469931 is a deficient number, since it is larger than the sum of its proper divisors (1448162389).

2920469931 is a wasteful number, since it uses less digits than its factorization.

2920469931 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1050263 (or 1050257 counting only the distinct ones).

The product of its (nonzero) digits is 209952, while the sum is 45.

The square root of 2920469931 is about 54041.3724011521. The cubic root of 2920469931 is about 1429.3905713248.

The spelling of 2920469931 in words is "two billion, nine hundred twenty million, four hundred sixty-nine thousand, nine hundred thirty-one".

Divisors: 1 3 9 27 103 309 927 2781 1050151 3150453 9451359 28354077 108165553 324496659 973489977 2920469931