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155300680 = 235191271609
BaseRepresentation
bin10010100000110…
…11001101001000
3101211020002111001
421100123031020
5304224110210
623224344344
73564014443
oct1120331510
9354202431
10155300680
117a732777
12440150b4
13262367c2
14168a865a
15d97a03a
hex941b348

155300680 has 64 divisors (see below), whose sum is σ = 370944000. Its totient is φ = 58351104.

The previous prime is 155300659. The next prime is 155300681. The reversal of 155300680 is 86003551.

It is not an unprimeable number, because it can be changed into a prime (155300681) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 95716 + ... + 97324.

It is an arithmetic number, because the mean of its divisors is an integer number (5796000).

Almost surely, 2155300680 is an apocalyptic number.

155300680 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155300680, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (185472000).

155300680 is an abundant number, since it is smaller than the sum of its proper divisors (215643320).

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

155300680 is a wasteful number, since it uses less digits than its factorization.

155300680 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1766 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 155300680 is about 12461.9693467766. The cubic root of 155300680 is about 537.5156570164.

The spelling of 155300680 in words is "one hundred fifty-five million, three hundred thousand, six hundred eighty".

Divisors: 1 2 4 5 8 10 19 20 38 40 76 95 127 152 190 254 380 508 635 760 1016 1270 1609 2413 2540 3218 4826 5080 6436 8045 9652 12065 12872 16090 19304 24130 30571 32180 48260 61142 64360 96520 122284 152855 204343 244568 305710 408686 611420 817372 1021715 1222840 1634744 2043430 3882517 4086860 7765034 8173720 15530068 19412585 31060136 38825170 77650340 155300680