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75155700001 = 735771784281
BaseRepresentation
bin100010111111110100…
…0001111100100100001
321011222201201010200111
41011333220033210201
52212404324400001
654305343251321
75300266623664
oct1057750174441
9234881633614
1075155700001
1129967484868
12126955a9b41
13711961c705
1438cd6476db
151e4d070851
hex117fa0f921

75155700001 has 8 divisors (see below), whose sum is σ = 76317309704. Its totient is φ = 73997660160.

The previous prime is 75155699987. The next prime is 75155700023. The reversal of 75155700001 is 10000755157.

It can be written as a sum of positive squares in 4 ways, for example, as 38645662225 + 36510037776 = 196585^2 + 191076^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 75155700001 - 27 = 75155699873 is a prime.

It is a super-2 number, since 2×751557000012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (75155700031) 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 7 ways as a sum of consecutive naturals, for example, 850020 + ... + 934261.

It is an arithmetic number, because the mean of its divisors is an integer number (9539663713).

Almost surely, 275155700001 is an apocalyptic number.

It is an amenable number.

75155700001 is a deficient number, since it is larger than the sum of its proper divisors (1161609703).

75155700001 is a wasteful number, since it uses less digits than its factorization.

75155700001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1784931.

The product of its (nonzero) digits is 6125, while the sum is 31.

The spelling of 75155700001 in words is "seventy-five billion, one hundred fifty-five million, seven hundred thousand, one".

Divisors: 1 73 577 42121 1784281 130252513 1029530137 75155700001