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145445976 = 23331351797
BaseRepresentation
bin10001010101101…
…01010001011000
3101010200102101000
420222311101120
5244213232401
622233225000
73414161514
oct1052652130
9333612330
10145445976
1175111795
1240862160
1324196110
1415461144
15cb80186
hex8ab5458

145445976 has 64 divisors (see below), whose sum is σ = 435103200. Its totient is φ = 44751744.

The previous prime is 145445953. The next prime is 145445977. The reversal of 145445976 is 679544541.

145445976 is a `hidden beast` number, since 1 + 4 + 54 + 4 + 597 + 6 = 666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (145445977) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 23091 + ... + 28706.

Almost surely, 2145445976 is an apocalyptic number.

It is an amenable number.

145445976 is an abundant number, since it is smaller than the sum of its proper divisors (289657224).

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

145445976 is a wasteful number, since it uses less digits than its factorization.

145445976 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 51825 (or 51815 counting only the distinct ones).

The product of its digits is 604800, while the sum is 45.

The square root of 145445976 is about 12060.0985070604. The cubic root of 145445976 is about 525.8968507225.

The spelling of 145445976 in words is "one hundred forty-five million, four hundred forty-five thousand, nine hundred seventy-six".

Divisors: 1 2 3 4 6 8 9 12 13 18 24 26 27 36 39 52 54 72 78 104 108 117 156 216 234 312 351 468 702 936 1404 2808 51797 103594 155391 207188 310782 414376 466173 621564 673361 932346 1243128 1346722 1398519 1864692 2020083 2693444 2797038 3729384 4040166 5386888 5594076 6060249 8080332 11188152 12120498 16160664 18180747 24240996 36361494 48481992 72722988 145445976