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70228352 = 272272417
BaseRepresentation
bin1000010111110…
…01100110000000
311220010222012002
410023321212000
5120434301402
610545123132
71511634245
oct413714600
9156128162
1070228352
1136707667
121b6294a8
131171b74c
1494815cc
156273602
hex42f9980

70228352 has 32 divisors (see below), whose sum is σ = 140582520. Its totient is φ = 34945024.

The previous prime is 70228337. The next prime is 70228381. The reversal of 70228352 is 25382207.

It is a tau number, because it is divible by the number of its divisors (32).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27848 + ... + 30264.

Almost surely, 270228352 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 70228352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (70291260).

70228352 is an abundant number, since it is smaller than the sum of its proper divisors (70354168).

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

70228352 is a wasteful number, since it uses less digits than its factorization.

70228352 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2658 (or 2646 counting only the distinct ones).

The product of its (nonzero) digits is 6720, while the sum is 29.

The square root of 70228352 is about 8380.2357962053. The cubic root of 70228352 is about 412.5761881924.

The spelling of 70228352 in words is "seventy million, two hundred twenty-eight thousand, three hundred fifty-two".

Divisors: 1 2 4 8 16 32 64 128 227 454 908 1816 2417 3632 4834 7264 9668 14528 19336 29056 38672 77344 154688 309376 548659 1097318 2194636 4389272 8778544 17557088 35114176 70228352