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70490213 = 2910323599
BaseRepresentation
bin1000011001110…
…01100001100101
311220122021101122
410030321201211
5121021141323
610554503325
71514104553
oct414714145
9156567348
1070490213
1136876382
121b734b45
13117b09b1
14950cbd3
1562c5ec8
hex4339865

70490213 has 8 divisors (see below), whose sum is σ = 73632000. Its totient is φ = 67395888.

The previous prime is 70490179. The next prime is 70490219. The reversal of 70490213 is 31209407.

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 70490213 - 28 = 70489957 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 (70490219) 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, 8813 + ... + 14786.

It is an arithmetic number, because the mean of its divisors is an integer number (9204000).

Almost surely, 270490213 is an apocalyptic number.

It is an amenable number.

70490213 is a deficient number, since it is larger than the sum of its proper divisors (3141787).

70490213 is a wasteful number, since it uses less digits than its factorization.

70490213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23731.

The product of its (nonzero) digits is 1512, while the sum is 26.

The square root of 70490213 is about 8395.8449842764. The cubic root of 70490213 is about 413.0883441682.

The spelling of 70490213 in words is "seventy million, four hundred ninety thousand, two hundred thirteen".

Divisors: 1 29 103 2987 23599 684371 2430697 70490213