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70645641370 = 257064564137
BaseRepresentation
bin100000111001011001…
…1101111000010011010
320202100102020102022221
41001302303233002122
52124140241010440
652242033134254
75050444021003
oct1016263570232
9222312212287
1070645641370
1127a62693a87
12118370ba38a
13687b133775
1435c26801aa
151c87146d4a
hex1072cef09a

70645641370 has 8 divisors (see below), whose sum is σ = 127162154484. Its totient is φ = 28258256544.

The previous prime is 70645641361. The next prime is 70645641379. The reversal of 70645641370 is 7314654607.

It is an interprime number because it is at equal distance from previous prime (70645641361) and next prime (70645641379).

It can be written as a sum of positive squares in 2 ways, for example, as 58254166881 + 12391474489 = 241359^2 + 111317^2 .

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

It is not an unprimeable number, because it can be changed into a prime (70645641379) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3532282059 + ... + 3532282078.

Almost surely, 270645641370 is an apocalyptic number.

70645641370 is a deficient number, since it is larger than the sum of its proper divisors (56516513114).

70645641370 is a wasteful number, since it uses less digits than its factorization.

70645641370 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7064564144.

The product of its (nonzero) digits is 423360, while the sum is 43.

The spelling of 70645641370 in words is "seventy billion, six hundred forty-five million, six hundred forty-one thousand, three hundred seventy".

Divisors: 1 2 5 10 7064564137 14129128274 35322820685 70645641370