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28357379004 = 2238926551853
BaseRepresentation
bin11010011010001110…
…110100001110111100
32201012021102002222110
4122122032310032330
5431033442112004
621005513014020
72022502513233
oct323216641674
981167362873
1028357379004
1111032001619
1255b49b4310
13289bc88806
14153021bb1a
15b0e80b589
hex69a3b43bc

28357379004 has 24 divisors (see below), whose sum is σ = 66910672080. Its totient is φ = 9346251904.

The previous prime is 28357378981. The next prime is 28357379047. The reversal of 28357379004 is 40097375382.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 13274859 + ... + 13276994.

It is an arithmetic number, because the mean of its divisors is an integer number (2787944670).

Almost surely, 228357379004 is an apocalyptic number.

It is an amenable number.

28357379004 is an abundant number, since it is smaller than the sum of its proper divisors (38553293076).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

28357379004 is a wasteful number, since it uses less digits than its factorization.

28357379004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26551949 (or 26551947 counting only the distinct ones).

The product of its (nonzero) digits is 1270080, while the sum is 48.

The spelling of 28357379004 in words is "twenty-eight billion, three hundred fifty-seven million, three hundred seventy-nine thousand, four".

Divisors: 1 2 3 4 6 12 89 178 267 356 534 1068 26551853 53103706 79655559 106207412 159311118 318622236 2363114917 4726229834 7089344751 9452459668 14178689502 28357379004