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70253472 = 253731807
BaseRepresentation
bin1000010111111…
…11101110100000
311220012020122110
410023333232200
5120441102342
610545435320
71512100422
oct413775640
9156166573
1070253472
1136724523
121b63bb40
131172a003
14948a812
15627ac9c
hex42ffba0

70253472 has 24 divisors (see below), whose sum is σ = 184415616. Its totient is φ = 23417792.

The previous prime is 70253467. The next prime is 70253473. The reversal of 70253472 is 27435207.

It is a tau number, because it is divible by the number of its divisors (24).

It is not an unprimeable number, because it can be changed into a prime (70253473) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 365808 + ... + 365999.

It is an arithmetic number, because the mean of its divisors is an integer number (7683984).

Almost surely, 270253472 is an apocalyptic number.

It is an amenable number.

70253472 is an abundant number, since it is smaller than the sum of its proper divisors (114162144).

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

70253472 is a wasteful number, since it uses less digits than its factorization.

70253472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 731820 (or 731812 counting only the distinct ones).

The product of its (nonzero) digits is 11760, while the sum is 30.

The square root of 70253472 is about 8381.7344267162. The cubic root of 70253472 is about 412.6253738280.

Adding to 70253472 its reverse (27435207), we get a palindrome (97688679).

The spelling of 70253472 in words is "seventy million, two hundred fifty-three thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 731807 1463614 2195421 2927228 4390842 5854456 8781684 11708912 17563368 23417824 35126736 70253472