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7924902068 = 227853252289
BaseRepresentation
bin1110110000101110…
…00110100010110100
3202110022002201220102
413120113012202310
5112212233331233
63350214053232
7400246361516
oct73027064264
922408081812
107924902068
1133a7445246
12165204a218
13993b0b085
14552719bb6
15315b141e8
hex1d85c68b4

7924902068 has 12 divisors (see below), whose sum is σ = 13870399620. Its totient is φ = 3961930752.

The previous prime is 7924902061. The next prime is 7924902113. The reversal of 7924902068 is 8602094297.

It can be written as a sum of positive squares in 2 ways, for example, as 547466404 + 7377435664 = 23398^2 + 85892^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7924902061) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94733 + ... + 157556.

It is an arithmetic number, because the mean of its divisors is an integer number (1155866635).

Almost surely, 27924902068 is an apocalyptic number.

It is an amenable number.

7924902068 is a deficient number, since it is larger than the sum of its proper divisors (5945497552).

7924902068 is a wasteful number, since it uses less digits than its factorization.

7924902068 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 260146 (or 260144 counting only the distinct ones).

The product of its (nonzero) digits is 435456, while the sum is 47.

The square root of 7924902068 is about 89021.9190312139. The cubic root of 7924902068 is about 1993.7221539426.

The spelling of 7924902068 in words is "seven billion, nine hundred twenty-four million, nine hundred two thousand, sixty-eight".

Divisors: 1 2 4 7853 15706 31412 252289 504578 1009156 1981225517 3962451034 7924902068