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70253568 = 210347112
BaseRepresentation
bin1000010111111…
…11110000000000
311220012020210000
410023333300000
5120441103233
610545440000
71512100620
oct413776000
9156166700
1070253568
1136724600
121b640000
131172a078
14948a880
hex42ffc00

70253568 has 330 divisors, whose sum is σ = 263538968. Its totient is φ = 18247680.

The previous prime is 70253563. The next prime is 70253581. The reversal of 70253568 is 86535207.

70253568 = 943 + 953 + ... + 1373.

70253568 is a `hidden beast` number, since 70 + 25 + 3 + 568 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70253563) by changing a digit.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 6386683 + ... + 6386693.

Almost surely, 270253568 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 70253568, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131769484).

70253568 is an abundant number, since it is smaller than the sum of its proper divisors (193285400).

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

70253568 is a wasteful number, since it uses less digits than its factorization.

70253568 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 61 (or 23 counting only the distinct ones).

The product of its (nonzero) digits is 50400, while the sum is 36.

The square root of 70253568 is about 8381.7401534526. The cubic root of 70253568 is about 412.6255617761.

The spelling of 70253568 in words is "seventy million, two hundred fifty-three thousand, five hundred sixty-eight".