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51070061028 = 22372326433779
BaseRepresentation
bin101111100100000000…
…110100100111100100
311212211011022220101210
4233210000310213210
51314042413423103
635243344351420
73455364233130
oct574400644744
9155734286353
1051070061028
111a727799808
129a93315570
134a7b66a42c
1426868b83c0
1514dd7b4e03
hexbe40349e4

51070061028 has 48 divisors (see below), whose sum is σ = 142108001280. Its totient is φ = 13957034784.

The previous prime is 51070061027. The next prime is 51070061071. The reversal of 51070061028 is 82016007015.

It is a super-2 number, since 2×510700610282 (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 51070060986 and 51070061004.

It is not an unprimeable number, because it can be changed into a prime (51070061027) 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, 13214958 + ... + 13218821.

It is an arithmetic number, because the mean of its divisors is an integer number (2960583360).

Almost surely, 251070061028 is an apocalyptic number.

It is an amenable number.

51070061028 is an abundant number, since it is smaller than the sum of its proper divisors (91037940252).

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

51070061028 is a wasteful number, since it uses less digits than its factorization.

51070061028 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 26433816 (or 26433814 counting only the distinct ones).

The product of its (nonzero) digits is 3360, while the sum is 30.

The spelling of 51070061028 in words is "fifty-one billion, seventy million, sixty-one thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 23 28 42 46 69 84 92 138 161 276 322 483 644 966 1932 26433779 52867558 79301337 105735116 158602674 185036453 317205348 370072906 555109359 607976917 740145812 1110218718 1215953834 1823930751 2220437436 2431907668 3647861502 4255838419 7295723004 8511676838 12767515257 17023353676 25535030514 51070061028