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7500550057 = 711213261859
BaseRepresentation
bin1101111110001000…
…10100111110101001
3201100201121102101021
412333010110332221
5110330120100212
63240134452441
7353604423610
oct67704247651
921321542337
107500550057
1131a9957300
121553b04121
13926c21500
14512216877
152dd740307
hex1bf114fa9

7500550057 has 72 divisors (see below), whose sum is σ = 10382043840. Its totient is φ = 5300380800.

The previous prime is 7500550049. The next prime is 7500550061.

7500550057 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 7500550057 - 23 = 7500550049 is a prime.

It is not an unprimeable number, because it can be changed into a prime (7500550087) by changing a digit.

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 71 ways as a sum of consecutive naturals, for example, 8731294 + ... + 8732152.

Almost surely, 27500550057 is an apocalyptic number.

7500550057 is a gapful number since it is divisible by the number (77) formed by its first and last digit.

It is an amenable number.

7500550057 is a deficient number, since it is larger than the sum of its proper divisors (2881493783).

7500550057 is a wasteful number, since it uses less digits than its factorization.

7500550057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 975 (or 951 counting only the distinct ones).

The product of its (nonzero) digits is 30625, while the sum is 34.

The square root of 7500550057 is about 86605.7160757880. The cubic root of 7500550057 is about 1957.4816727557.

The spelling of 7500550057 in words is "seven billion, five hundred million, five hundred fifty thousand, fifty-seven".

Divisors: 1 7 11 13 61 77 91 121 143 169 427 671 793 847 859 1001 1183 1573 1859 4697 5551 6013 7381 8723 9449 10309 11011 11167 13013 20449 51667 52399 61061 66143 72163 78169 95953 103939 113399 122837 143143 145171 366793 576389 671671 681187 727573 793793 859859 1016197 1247389 1351207 1596881 4034723 4768309 6340279 7493057 8731723 8855431 9458449 11178167 17565691 44381953 52451399 61988017 82423627 97409741 122959837 576965389 681868187 1071507151 7500550057