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75945254957 = 11131294141039
BaseRepresentation
bin100011010111010110…
…0001010000000101101
321021000202101200110122
41012232230022000231
52221013441124312
654515550214325
75325665005325
oct1065654120055
9237022350418
1075945254957
112a232131120
1212875ab43a5
1372140862b0
143966454285
151e97532b72
hex11aeb0a02d

75945254957 has 16 divisors (see below), whose sum is σ = 89231466240. Its totient is φ = 63723806400.

The previous prime is 75945254951. The next prime is 75945254993.

75945254957 is nontrivially palindromic in base 10.

It is a cyclic number.

It is not a de Polignac number, because 75945254957 - 24 = 75945254941 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 75945254957.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (75945254951) 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, 1830044 + ... + 1871082.

It is an arithmetic number, because the mean of its divisors is an integer number (5576966640).

Almost surely, 275945254957 is an apocalyptic number.

It is an amenable number.

75945254957 is a deficient number, since it is larger than the sum of its proper divisors (13286211283).

75945254957 is a wasteful number, since it uses less digits than its factorization.

75945254957 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54004.

The product of its digits is 79380000, while the sum is 62.

The spelling of 75945254957 in words is "seventy-five billion, nine hundred forty-five million, two hundred fifty-four thousand, nine hundred fifty-seven".

Divisors: 1 11 13 143 12941 41039 142351 168233 451429 533507 1850563 5868577 531085699 5841942689 6904114087 75945254957