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155056050 = 232525872
BaseRepresentation
bin10010011110111…
…11011110110010
3101210202122220200
421033133132302
5304143243200
623215220030
73561645312
oct1117373662
9353678820
10155056050
117a5859a6
1243b17616
132617c356
1416843442
15d92c800
hex93df7b2

155056050 has 54 divisors (see below), whose sum is σ = 417294813. Its totient is φ = 41277840.

The previous prime is 155056039. The next prime is 155056051. The reversal of 155056050 is 50650551.

155056050 is a `hidden beast` number, since 1 + 5 + 50 + 5 + 605 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 151954929 + 3101121 = 12327^2 + 1761^2 .

It is an ABA number since it can be written as A⋅BA, here for A=2, B=8805.

It is not an unprimeable number, because it can be changed into a prime (155056051) by changing a digit.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 263857 + ... + 264443.

Almost surely, 2155056050 is an apocalyptic number.

155056050 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 155056050

155056050 is an abundant number, since it is smaller than the sum of its proper divisors (262238763).

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

155056050 is an equidigital number, since it uses as much as digits as its factorization.

155056050 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1192 (or 597 counting only the distinct ones).

The product of its (nonzero) digits is 3750, while the sum is 27.

The square root of 155056050 is about 12452.1504166951. The cubic root of 155056050 is about 537.2332767159.

It can be divided in two parts, 1550 and 56050, that added together give a square (57600 = 2402).

The spelling of 155056050 in words is "one hundred fifty-five million, fifty-six thousand, fifty".

Divisors: 1 2 3 5 6 9 10 15 18 25 30 45 50 75 90 150 225 450 587 1174 1761 2935 3522 5283 5870 8805 10566 14675 17610 26415 29350 44025 52830 88050 132075 264150 344569 689138 1033707 1722845 2067414 3101121 3445690 5168535 6202242 8614225 10337070 15505605 17228450 25842675 31011210 51685350 77528025 155056050