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147458442 = 23171445671
BaseRepresentation
bin10001100101000…
…00100110001010
3101021110122221210
420302200212022
5300222132232
622344313550
73440242665
oct1062404612
9337418853
10147458442
117626678a
12414728b6
132471c121
14158266dc
15ce2b5cc
hex8ca098a

147458442 has 16 divisors (see below), whose sum is σ = 312265152. Its totient is φ = 46261440.

The previous prime is 147458429. The next prime is 147458503. The reversal of 147458442 is 244854741.

It is a self number, because there is not a number n which added to its sum of digits gives 147458442.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 722734 + ... + 722937.

It is an arithmetic number, because the mean of its divisors is an integer number (19516572).

Almost surely, 2147458442 is an apocalyptic number.

147458442 is an abundant number, since it is smaller than the sum of its proper divisors (164806710).

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

147458442 is a wasteful number, since it uses less digits than its factorization.

147458442 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1445693.

The product of its digits is 143360, while the sum is 39.

The square root of 147458442 is about 12143.2467651778. The cubic root of 147458442 is about 528.3112762228.

The spelling of 147458442 in words is "one hundred forty-seven million, four hundred fifty-eight thousand, four hundred forty-two".

Divisors: 1 2 3 6 17 34 51 102 1445671 2891342 4337013 8674026 24576407 49152814 73729221 147458442