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70493898 = 23137191449
BaseRepresentation
bin1000011001110…
…10011011001010
311220122110110010
410030322123022
5121021301043
610554532350
71514121366
oct414723312
9156573403
1070493898
1136879122
121b7370b6
13117b2587
1495102a6
1562c7133
hex433a6ca

70493898 has 32 divisors (see below), whose sum is σ = 143078400. Its totient is φ = 23152640.

The previous prime is 70493893. The next prime is 70493903. The reversal of 70493898 is 89839407.

It is an interprime number because it is at equal distance from previous prime (70493893) and next prime (70493903).

It is not an unprimeable number, because it can be changed into a prime (70493893) 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 15 ways as a sum of consecutive naturals, for example, 156778 + ... + 157226.

It is an arithmetic number, because the mean of its divisors is an integer number (4471200).

Almost surely, 270493898 is an apocalyptic number.

70493898 is an abundant number, since it is smaller than the sum of its proper divisors (72584502).

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

70493898 is a wasteful number, since it uses less digits than its factorization.

70493898 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 782.

The product of its (nonzero) digits is 435456, while the sum is 48.

The square root of 70493898 is about 8396.0644351982. The cubic root of 70493898 is about 413.0955423497.

The spelling of 70493898 in words is "seventy million, four hundred ninety-three thousand, eight hundred ninety-eight".

Divisors: 1 2 3 6 137 191 274 382 411 449 573 822 898 1146 1347 2694 26167 52334 61513 78501 85759 123026 157002 171518 184539 257277 369078 514554 11748983 23497966 35246949 70493898