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155493536 = 25113711939
BaseRepresentation
bin10010100010010…
…10010010100000
3101211120220000212
421101022102200
5304301243121
623232433252
73565446632
oct1121122240
9354526025
10155493536
117a854660
12440a8828
13262a3513
1416918a52
15d9b725b
hex944a4a0

155493536 has 48 divisors (see below), whose sum is σ = 343012320. Its totient is φ = 68762880.

The previous prime is 155493529. The next prime is 155493571. The reversal of 155493536 is 635394551.

155493536 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 155493493 and 155493502.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7055 + ... + 18993.

It is an arithmetic number, because the mean of its divisors is an integer number (7146090).

Almost surely, 2155493536 is an apocalyptic number.

155493536 is a gapful number since it is divisible by the number (16) 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 155493536, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (171506160).

155493536 is an abundant number, since it is smaller than the sum of its proper divisors (187518784).

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

155493536 is a wasteful number, since it uses less digits than its factorization.

155493536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11997 (or 11989 counting only the distinct ones).

The product of its digits is 243000, while the sum is 41.

The square root of 155493536 is about 12469.7047278594. The cubic root of 155493536 is about 537.7380647970.

The spelling of 155493536 in words is "one hundred fifty-five million, four hundred ninety-three thousand, five hundred thirty-six".

Divisors: 1 2 4 8 11 16 22 32 37 44 74 88 148 176 296 352 407 592 814 1184 1628 3256 6512 11939 13024 23878 47756 95512 131329 191024 262658 382048 441743 525316 883486 1050632 1766972 2101264 3533944 4202528 4859173 7067888 9718346 14135776 19436692 38873384 77746768 155493536