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70308897 = 372732237
BaseRepresentation
bin1000011000011…
…01010000100001
311220022001200020
410030031100201
5120444341042
610550544053
71512421131
oct414152041
9156261606
1070308897
113676212a
121b668029
13117492c9
1494a2ac1
15628c3ec
hex430d421

70308897 has 8 divisors (see below), whose sum is σ = 93877056. Its totient is φ = 46806672.

The previous prime is 70308893. The next prime is 70308919. The reversal of 70308897 is 79880307.

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

It is not a de Polignac number, because 70308897 - 22 = 70308893 is a prime.

It is not an unprimeable number, because it can be changed into a prime (70308893) 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, 13938 + ... + 18299.

It is an arithmetic number, because the mean of its divisors is an integer number (11734632).

Almost surely, 270308897 is an apocalyptic number.

It is an amenable number.

70308897 is a deficient number, since it is larger than the sum of its proper divisors (23568159).

70308897 is a wasteful number, since it uses less digits than its factorization.

70308897 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32967.

The product of its (nonzero) digits is 84672, while the sum is 42.

The square root of 70308897 is about 8385.0400714606. The cubic root of 70308897 is about 412.7338560098.

The spelling of 70308897 in words is "seventy million, three hundred eight thousand, eight hundred ninety-seven".

Divisors: 1 3 727 2181 32237 96711 23436299 70308897