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70120212901 = 182338464187
BaseRepresentation
bin100000101001101111…
…1011000100110100101
320200222210112212222021
41001103133120212211
52122101233303101
652113543303141
75031433655404
oct1012337304645
9220883485867
1070120212901
1127813039882
121170b14aab1
1367c631744b
14357298963b
151c55e595a1
hex10537d89a5

70120212901 has 4 divisors (see below), whose sum is σ = 70158678912. Its totient is φ = 70081746892.

The previous prime is 70120212863. The next prime is 70120212949. The reversal of 70120212901 is 10921202107.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 70120212901 - 213 = 70120204709 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70120212971) 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, 19230271 + ... + 19233916.

It is an arithmetic number, because the mean of its divisors is an integer number (17539669728).

Almost surely, 270120212901 is an apocalyptic number.

It is an amenable number.

70120212901 is a deficient number, since it is larger than the sum of its proper divisors (38466011).

70120212901 is a wasteful number, since it uses less digits than its factorization.

70120212901 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38466010.

The product of its (nonzero) digits is 504, while the sum is 25.

The spelling of 70120212901 in words is "seventy billion, one hundred twenty million, two hundred twelve thousand, nine hundred one".

Divisors: 1 1823 38464187 70120212901