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51105542214 = 2347612970907
BaseRepresentation
bin101111100110001000…
…001011000001000110
311212220122002112102210
4233212020023001012
51314131004322324
635251053044250
73456304640616
oct574610130106
9155818075383
1051105542214
111a745823301
129aa3186686
134a85b1120c
14268b4b2a46
1514e1972d29
hexbe620b046

51105542214 has 32 divisors (see below), whose sum is σ = 106097066496. Its totient is φ = 16399401120.

The previous prime is 51105542209. The next prime is 51105542219. The reversal of 51105542214 is 41224550115.

It is an interprime number because it is at equal distance from previous prime (51105542209) and next prime (51105542219).

It is a super-2 number, since 2×511055422142 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (51105542219) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1468252 + ... + 1502655.

It is an arithmetic number, because the mean of its divisors is an integer number (3315533328).

Almost surely, 251105542214 is an apocalyptic number.

51105542214 is an abundant number, since it is smaller than the sum of its proper divisors (54991524282).

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

51105542214 is a wasteful number, since it uses less digits than its factorization.

51105542214 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2971020.

The product of its (nonzero) digits is 8000, while the sum is 30.

The spelling of 51105542214 in words is "fifty-one billion, one hundred five million, five hundred forty-two thousand, two hundred fourteen".

Divisors: 1 2 3 6 47 61 94 122 141 183 282 366 2867 5734 8601 17202 2970907 5941814 8912721 17825442 139632629 181225327 279265258 362450654 418897887 543675981 837795774 1087351962 8517590369 17035180738 25552771107 51105542214