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70167980 = 2253508399
BaseRepresentation
bin1000010111010…
…10110110101100
311220000220101002
410023222312230
5120430333410
610543535432
71511263241
oct413526654
9156026332
1070167980
1136676273
121b5ba578
13116ca11c
1494675c8
1562607a5
hex42eadac

70167980 has 12 divisors (see below), whose sum is σ = 147352800. Its totient is φ = 28067184.

The previous prime is 70167971. The next prime is 70167991. The reversal of 70167980 is 8976107.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1754180 + ... + 1754219.

It is an arithmetic number, because the mean of its divisors is an integer number (12279400).

Almost surely, 270167980 is an apocalyptic number.

It is an amenable number.

70167980 is an abundant number, since it is smaller than the sum of its proper divisors (77184820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

70167980 is a wasteful number, since it uses less digits than its factorization.

70167980 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3508408 (or 3508406 counting only the distinct ones).

The product of its (nonzero) digits is 21168, while the sum is 38.

The square root of 70167980 is about 8376.6329751279. The cubic root of 70167980 is about 412.4579302060.

The spelling of 70167980 in words is "seventy million, one hundred sixty-seven thousand, nine hundred eighty".

Divisors: 1 2 4 5 10 20 3508399 7016798 14033596 17541995 35083990 70167980