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50970861014545 = 55311091181146857
BaseRepresentation
bin10111001011011100101000…
…00100001000111000010001
320200110202200221102212011101
423211232110010020320101
523140101310404431140
6300223405034144401
713510344311035603
oct1345562404107021
9220422627385141
1050970861014545
1115271691264a1a
1258725b2282101
1322596bab20294
14c83007ad5173
155d5d0817799a
hex2e5b94108e11

50970861014545 has 32 divisors (see below), whose sum is σ = 62428525143840. Its totient is φ = 39937124997120.

The previous prime is 50970861014441. The next prime is 50970861014639. The reversal of 50970861014545 is 54541016807905.

It is a Cunningham number, because it is equal to 71393882+1.

It can be written as a sum of positive squares in 16 ways, for example, as 4224541726161 + 46746319288384 = 2055369^2 + 6837128^2 .

It is not a de Polignac number, because 50970861014545 - 221 = 50970858917393 is a prime.

It is a super-5 number, since 5×509708610145455 (a number of 70 digits) contains 55555 as substring.

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 31 ways as a sum of consecutive naturals, for example, 347004757 + ... + 347151613.

It is an arithmetic number, because the mean of its divisors is an integer number (1950891410745).

Almost surely, 250970861014545 is an apocalyptic number.

It is an amenable number.

50970861014545 is a deficient number, since it is larger than the sum of its proper divisors (11457664129295).

50970861014545 is a wasteful number, since it uses less digits than its factorization.

50970861014545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 149205.

The product of its (nonzero) digits is 6048000, while the sum is 55.

The spelling of 50970861014545 in words is "fifty trillion, nine hundred seventy billion, eight hundred sixty-one million, fourteen thousand, five hundred forty-five".

Divisors: 1 5 53 265 1109 1181 5545 5905 58777 62593 146857 293885 312965 734285 1309729 6548645 7783421 38917105 69415637 162864413 173438117 347078185 814322065 867190585 8631813889 9192220201 43159069445 45961101005 192342871753 961714358765 10194172202909 50970861014545