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70986554497 = 570112451597
BaseRepresentation
bin100001000011100100…
…0001101110010000001
320210020011201121020001
41002013020031302001
52130340024220442
652335532120001
75062053520555
oct1020710156201
9223204647201
1070986554497
1128118072071
1211911306001
136903957901
143615a63865
151ca70382b7
hex108720dc81

70986554497 has 4 divisors (see below), whose sum is σ = 70999011796. Its totient is φ = 70974097200.

The previous prime is 70986554491. The next prime is 70986554503. The reversal of 70986554497 is 79445568907.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 79445568907 = 83957175529.

It is an interprime number because it is at equal distance from previous prime (70986554491) and next prime (70986554503).

It can be written as a sum of positive squares in 2 ways, for example, as 33808544641 + 37178009856 = 183871^2 + 192816^2 .

It is a cyclic number.

It is not a de Polignac number, because 70986554497 - 215 = 70986521729 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70986554491) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6220098 + ... + 6231499.

It is an arithmetic number, because the mean of its divisors is an integer number (17749752949).

Almost surely, 270986554497 is an apocalyptic number.

It is an amenable number.

70986554497 is a deficient number, since it is larger than the sum of its proper divisors (12457299).

70986554497 is a wasteful number, since it uses less digits than its factorization.

70986554497 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12457298.

The product of its (nonzero) digits is 76204800, while the sum is 64.

The spelling of 70986554497 in words is "seventy billion, nine hundred eighty-six million, five hundred fifty-four thousand, four hundred ninety-seven".

Divisors: 1 5701 12451597 70986554497