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155294330 = 25127122279
BaseRepresentation
bin10010100000110…
…01101001111010
3101211012202202212
421100121221322
5304223404310
623224255122
73563660102
oct1120315172
9354182685
10155294330
117a728a24
12440114a2
1326233949
14168a6202
15d978205
hex9419a7a

155294330 has 16 divisors (see below), whose sum is σ = 281733120. Its totient is φ = 61628112.

The previous prime is 155294327. The next prime is 155294351. The reversal of 155294330 is 33492551.

It is a Curzon number.

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 7 ways as a sum of consecutive naturals, for example, 59870 + ... + 62409.

It is an arithmetic number, because the mean of its divisors is an integer number (17608320).

Almost surely, 2155294330 is an apocalyptic number.

155294330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155294330 is a deficient number, since it is larger than the sum of its proper divisors (126438790).

155294330 is a wasteful number, since it uses less digits than its factorization.

155294330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 122413.

The product of its (nonzero) digits is 16200, while the sum is 32.

The square root of 155294330 is about 12461.7145690310. The cubic root of 155294330 is about 537.5083308606.

The spelling of 155294330 in words is "one hundred fifty-five million, two hundred ninety-four thousand, three hundred thirty".

Divisors: 1 2 5 10 127 254 635 1270 122279 244558 611395 1222790 15529433 31058866 77647165 155294330