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70495841561 = 281379661939
BaseRepresentation
bin100000110100111100…
…0010010110100011001
320201221222100210121212
41001221320102310121
52123333413412221
652215122312505
75043644523605
oct1015170226431
9221858323555
1070495841561
1127996079192
12117b4ab8735
1368560a4a22
1435aa808505
151c78e06b5b
hex1069e12d19

70495841561 has 8 divisors (see below), whose sum is σ = 70933490400. Its totient is φ = 70059517920.

The previous prime is 70495841509. The next prime is 70495841599. The reversal of 70495841561 is 16514859407.

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 70495841561 - 226 = 70428732697 is a prime.

It is a super-2 number, since 2×704958415612 (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (70495841161) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 224471 + ... + 437468.

It is an arithmetic number, because the mean of its divisors is an integer number (8866686300).

Almost surely, 270495841561 is an apocalyptic number.

It is an amenable number.

70495841561 is a deficient number, since it is larger than the sum of its proper divisors (437648839).

70495841561 is a wasteful number, since it uses less digits than its factorization.

70495841561 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 662599.

The product of its (nonzero) digits is 1209600, while the sum is 50.

The spelling of 70495841561 in words is "seventy billion, four hundred ninety-five million, eight hundred forty-one thousand, five hundred sixty-one".

Divisors: 1 281 379 106499 661939 186004859 250874881 70495841561