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72048426 = 2313986389
BaseRepresentation
bin1000100101101…
…01111100101010
312000120102212020
410102311330222
5121421022201
611052125310
71533254502
oct422657452
9160512766
1072048426
113774005a
1220166836
1311c08008
1497d6a02
1564d2a36
hex44b5f2a

72048426 has 16 divisors (see below), whose sum is σ = 145135200. Its totient is φ = 23843088.

The previous prime is 72048421. The next prime is 72048463. The reversal of 72048426 is 62484027.

It is not an unprimeable number, because it can be changed into a prime (72048421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 42361 + ... + 44028.

It is an arithmetic number, because the mean of its divisors is an integer number (9070950).

Almost surely, 272048426 is an apocalyptic number.

72048426 is an abundant number, since it is smaller than the sum of its proper divisors (73086774).

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

72048426 is a wasteful number, since it uses less digits than its factorization.

72048426 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86533.

The product of its (nonzero) digits is 21504, while the sum is 33.

The square root of 72048426 is about 8488.1344240063. The cubic root of 72048426 is about 416.1100123553.

The spelling of 72048426 in words is "seventy-two million, forty-eight thousand, four hundred twenty-six".

Divisors: 1 2 3 6 139 278 417 834 86389 172778 259167 518334 12008071 24016142 36024213 72048426