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155300545 = 5312234493
BaseRepresentation
bin10010100000110…
…11001011000001
3101211020002022001
421100123023001
5304224104140
623224344001
73564014161
oct1120331301
9354202261
10155300545
117a732664
1244015001
132623671a
14168a85a1
15d979e9a
hex941b2c1

155300545 has 16 divisors (see below), whose sum is σ = 193277952. Its totient is φ = 119666880.

The previous prime is 155300521. The next prime is 155300557. The reversal of 155300545 is 545003551.

It is not a de Polignac number, because 155300545 - 25 = 155300513 is a prime.

It is a Duffinian number.

It is an unprimeable number.

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, 32319 + ... + 36811.

It is an arithmetic number, because the mean of its divisors is an integer number (12079872).

Almost surely, 2155300545 is an apocalyptic number.

It is an amenable number.

155300545 is a deficient number, since it is larger than the sum of its proper divisors (37977407).

155300545 is a wasteful number, since it uses less digits than its factorization.

155300545 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4752.

The product of its (nonzero) digits is 7500, while the sum is 28.

The square root of 155300545 is about 12461.9639302961. The cubic root of 155300545 is about 537.5155012656.

It can be divided in two parts, 155 and 300545, that added together give a triangular number (300700 = T775).

The spelling of 155300545 in words is "one hundred fifty-five million, three hundred thousand, five hundred forty-five".

Divisors: 1 5 31 155 223 1115 4493 6913 22465 34565 139283 696415 1001939 5009695 31060109 155300545