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51436430312830 = 2525720014175219
BaseRepresentation
bin10111011000111111110100…
…01010000100010101111110
320202010021102021012200220021
423230133322022010111332
523220213302130002310
6301221323032042354
713556105456550553
oct1354377212042576
9222107367180807
1051436430312830
1115431081a6a632
1259288845333ba
132291585983774
14c9b772282a2a
155e2ea61d15da
hex2ec7fa28457e

51436430312830 has 16 divisors (see below), whose sum is σ = 92945829721680. Its totient is φ = 20494515423232.

The previous prime is 51436430312789. The next prime is 51436430312851. The reversal of 51436430312830 is 3821303463415.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10007085040 + ... + 10007090179.

It is an arithmetic number, because the mean of its divisors is an integer number (5809114357605).

Almost surely, 251436430312830 is an apocalyptic number.

51436430312830 is a deficient number, since it is larger than the sum of its proper divisors (41509399408850).

51436430312830 is a wasteful number, since it uses less digits than its factorization.

51436430312830 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20014175483.

The product of its (nonzero) digits is 622080, while the sum is 43.

The spelling of 51436430312830 in words is "fifty-one trillion, four hundred thirty-six billion, four hundred thirty million, three hundred twelve thousand, eight hundred thirty".

Divisors: 1 2 5 10 257 514 1285 2570 20014175219 40028350438 100070876095 200141752190 5143643031283 10287286062566 25718215156415 51436430312830