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145950155 = 51322310069
BaseRepresentation
bin10001011001100…
…00010111001011
3101011122000222022
420230300113023
5244330401110
622252115055
73421361441
oct1054602713
9334560868
10145950155
117542656a
1240a65a8b
1324311750
1415552b91
15cc2e755
hex8b305cb

145950155 has 16 divisors (see below), whose sum is σ = 189477120. Its totient is φ = 107284608.

The previous prime is 145950149. The next prime is 145950169. The reversal of 145950155 is 551059541.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-145950155 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9461 + ... + 19529.

It is an arithmetic number, because the mean of its divisors is an integer number (11842320).

Almost surely, 2145950155 is an apocalyptic number.

145950155 is a deficient number, since it is larger than the sum of its proper divisors (43526965).

145950155 is a wasteful number, since it uses less digits than its factorization.

145950155 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10310.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 145950155 is about 12080.9831967435. The cubic root of 145950155 is about 526.5038123212.

The spelling of 145950155 in words is "one hundred forty-five million, nine hundred fifty thousand, one hundred fifty-five".

Divisors: 1 5 13 65 223 1115 2899 10069 14495 50345 130897 654485 2245387 11226935 29190031 145950155