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155486230 = 2567239971
BaseRepresentation
bin10010100010010…
…00100000010110
3101211120112000021
421101020200112
5304301024410
623232335354
73565416424
oct1121104026
9354515007
10155486230
117a84a119
12440a455a
13262a00b3
1416916114
15d9b4eda
hex9448816

155486230 has 32 divisors (see below), whose sum is σ = 285534720. Its totient is φ = 60947040.

The previous prime is 155486213. The next prime is 155486231. The reversal of 155486230 is 32684551.

It is a super-2 number, since 2×1554862302 = 48351935439225800, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155486231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 159645 + ... + 160615.

It is an arithmetic number, because the mean of its divisors is an integer number (8922960).

Almost surely, 2155486230 is an apocalyptic number.

155486230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155486230 is a deficient number, since it is larger than the sum of its proper divisors (130048490).

155486230 is a wasteful number, since it uses less digits than its factorization.

155486230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1284.

The product of its (nonzero) digits is 28800, while the sum is 34.

The square root of 155486230 is about 12469.4117744182. The cubic root of 155486230 is about 537.7296426338.

The spelling of 155486230 in words is "one hundred fifty-five million, four hundred eighty-six thousand, two hundred thirty".

Divisors: 1 2 5 10 67 134 239 335 478 670 971 1195 1942 2390 4855 9710 16013 32026 65057 80065 130114 160130 232069 325285 464138 650570 1160345 2320690 15548623 31097246 77743115 155486230