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70400245 = 543327443
BaseRepresentation
bin1000011001000…
…11100011110101
311220110200222111
410030203203311
5121010301440
610552531021
71513251346
oct414434365
9156420874
1070400245
1136814823
121b6b0a71
131177ba66
1494c80cd
1562a94ea
hex43238f5

70400245 has 8 divisors (see below), whose sum is σ = 86445216. Its totient is φ = 55010256.

The previous prime is 70400227. The next prime is 70400249. The reversal of 70400245 is 54200407.

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 70400245 - 211 = 70398197 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 (70400249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 163507 + ... + 163936.

It is an arithmetic number, because the mean of its divisors is an integer number (10805652).

Almost surely, 270400245 is an apocalyptic number.

It is an amenable number.

70400245 is a deficient number, since it is larger than the sum of its proper divisors (16044971).

70400245 is a wasteful number, since it uses less digits than its factorization.

70400245 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 327491.

The product of its (nonzero) digits is 1120, while the sum is 22.

The square root of 70400245 is about 8390.4853852444. The cubic root of 70400245 is about 412.9125251756.

The spelling of 70400245 in words is "seventy million, four hundred thousand, two hundred forty-five".

Divisors: 1 5 43 215 327443 1637215 14080049 70400245