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70038812 = 2217509703
BaseRepresentation
bin1000010110010…
…11010100011100
311212210100012002
410023023110130
5120412220222
610541101432
71510214534
oct413132434
9155710162
1070038812
1136598218
121b557878
13116833ac
1494324c4
156237392
hex42cb51c

70038812 has 6 divisors (see below), whose sum is σ = 122567928. Its totient is φ = 35019404.

The previous prime is 70038809. The next prime is 70038833. The reversal of 70038812 is 21883007.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 8754848 + ... + 8754855.

It is an arithmetic number, because the mean of its divisors is an integer number (20427988).

Almost surely, 270038812 is an apocalyptic number.

It is an amenable number.

70038812 is a deficient number, since it is larger than the sum of its proper divisors (52529116).

70038812 is a wasteful number, since it uses less digits than its factorization.

70038812 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17509707 (or 17509705 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 29.

The square root of 70038812 is about 8368.9194045588. The cubic root of 70038812 is about 412.2046851101.

The spelling of 70038812 in words is "seventy million, thirty-eight thousand, eight hundred twelve".

Divisors: 1 2 4 17509703 35019406 70038812