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70745340965 = 5132174924841
BaseRepresentation
bin100000111100011000…
…0000011110000100101
320202121100211200110112
41001320300003300211
52124341301402330
652255554102405
75053064322245
oct1017060036045
9222540750415
1070745340965
112800399a842
121186457aa05
1368959a0600
1435d19d3b25
151c90c8c795
hex1078c03c25

70745340965 has 24 divisors (see below), whose sum is σ = 97334577288. Its totient is φ = 49169602560.

The previous prime is 70745340923. The next prime is 70745340973. The reversal of 70745340965 is 56904354707.

It can be written as a sum of positive squares in 12 ways, for example, as 17627076289 + 53118264676 = 132767^2 + 230474^2 .

It is not a de Polignac number, because 70745340965 - 28 = 70745340709 is a prime.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2448056 + ... + 2476785.

It is an arithmetic number, because the mean of its divisors is an integer number (4055607387).

Almost surely, 270745340965 is an apocalyptic number.

It is an amenable number.

70745340965 is a deficient number, since it is larger than the sum of its proper divisors (26589236323).

70745340965 is a wasteful number, since it uses less digits than its factorization.

70745340965 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4924889 (or 4924876 counting only the distinct ones).

The product of its (nonzero) digits is 3175200, while the sum is 50.

The spelling of 70745340965 in words is "seventy billion, seven hundred forty-five million, three hundred forty thousand, nine hundred sixty-five".

Divisors: 1 5 13 17 65 85 169 221 845 1105 2873 14365 4924841 24624205 64022933 83722297 320114665 418611485 832298129 1088389861 4161490645 5441949305 14149068193 70745340965