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145457682 = 2357142457
BaseRepresentation
bin10001010101110…
…00001000010010
3101010201000102120
420222320020102
5244214121212
622233355110
73414240606
oct1052701022
9333630376
10145457682
117511a567
1240868a96
132419b546
1415465506
15cb8388c
hex8ab8212

145457682 has 16 divisors (see below), whose sum is σ = 291431712. Its totient is φ = 48399840.

The previous prime is 145457651. The next prime is 145457687. The reversal of 145457682 is 286754541.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (145457687) 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, 17803 + ... + 24654.

It is an arithmetic number, because the mean of its divisors is an integer number (18214482).

Almost surely, 2145457682 is an apocalyptic number.

145457682 is an abundant number, since it is smaller than the sum of its proper divisors (145974030).

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

145457682 is a wasteful number, since it uses less digits than its factorization.

145457682 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43033.

The product of its digits is 268800, while the sum is 42.

The square root of 145457682 is about 12060.5838167147. The cubic root of 145457682 is about 525.9109590157.

The spelling of 145457682 in words is "one hundred forty-five million, four hundred fifty-seven thousand, six hundred eighty-two".

Divisors: 1 2 3 6 571 1142 1713 3426 42457 84914 127371 254742 24242947 48485894 72728841 145457682