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70990848 = 210327703
BaseRepresentation
bin1000011101100…
…11110000000000
311221120201010200
410032303300000
5121133201343
611013325200
71521261255
oct416636000
9157521120
1070990848
1137088525
121b936800
1311927826
1495dd42c
1563744d3
hex43b3c00

70990848 has 66 divisors (see below), whose sum is σ = 205011144. Its totient is φ = 23660544.

The previous prime is 70990831. The next prime is 70990873. The reversal of 70990848 is 84809907.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5365 + ... + 13067.

Almost surely, 270990848 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 70990848, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (102505572).

70990848 is an abundant number, since it is smaller than the sum of its proper divisors (134020296).

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

70990848 is a wasteful number, since it uses less digits than its factorization.

70990848 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7729 (or 7708 counting only the distinct ones).

The product of its (nonzero) digits is 145152, while the sum is 45.

The square root of 70990848 is about 8425.6066843878. The cubic root of 70990848 is about 414.0639822698.

The spelling of 70990848 in words is "seventy million, nine hundred ninety thousand, eight hundred forty-eight".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 32 36 48 64 72 96 128 144 192 256 288 384 512 576 768 1024 1152 1536 2304 3072 4608 7703 9216 15406 23109 30812 46218 61624 69327 92436 123248 138654 184872 246496 277308 369744 492992 554616 739488 985984 1109232 1478976 1971968 2218464 2957952 3943936 4436928 5915904 7887872 8873856 11831808 17747712 23663616 35495424 70990848