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145344955 = 5729143197
BaseRepresentation
bin10001010100111…
…00100110111011
3101010111021210111
420222130212323
5244202014310
622231125151
73413261140
oct1052344673
9333437714
10145344955
11750528a8
12408137b7
132415c142
14154363c7
15cb6028a
hex8a9c9bb

145344955 has 16 divisors (see below), whose sum is σ = 206205120. Its totient is φ = 96227712.

The previous prime is 145344949. The next prime is 145344967. The reversal of 145344955 is 559443541.

It is not a de Polignac number, because 145344955 - 25 = 145344923 is a prime.

It is a super-2 number, since 2×1453449552 = 42250311887904050, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 70584 + ... + 72613.

It is an arithmetic number, because the mean of its divisors is an integer number (12887820).

Almost surely, 2145344955 is an apocalyptic number.

145344955 is a deficient number, since it is larger than the sum of its proper divisors (60860165).

145344955 is a wasteful number, since it uses less digits than its factorization.

145344955 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143238.

The product of its digits is 216000, while the sum is 40.

The square root of 145344955 is about 12055.9095467741. The cubic root of 145344955 is about 525.7750668322.

The spelling of 145344955 in words is "one hundred forty-five million, three hundred forty-four thousand, nine hundred fifty-five".

Divisors: 1 5 7 29 35 145 203 1015 143197 715985 1002379 4152713 5011895 20763565 29068991 145344955