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147242808 = 233231411609
BaseRepresentation
bin10001100011010…
…11111100111000
3101021001201011100
420301223330320
5300143232213
622335531400
73435354216
oct1061537470
9337051140
10147242808
1176129779
1241389b60
1324674c2b
14157abcb6
15cdd7773
hex8c6bf38

147242808 has 96 divisors (see below), whose sum is σ = 421948800. Its totient is φ = 46310400.

The previous prime is 147242801. The next prime is 147242813. The reversal of 147242808 is 808242741.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (147242801) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 90708 + ... + 92316.

It is an arithmetic number, because the mean of its divisors is an integer number (4395300).

Almost surely, 2147242808 is an apocalyptic number.

147242808 is a gapful number since it is divisible by the number (18) 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 147242808, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210974400).

147242808 is an abundant number, since it is smaller than the sum of its proper divisors (274705992).

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

147242808 is a wasteful number, since it uses less digits than its factorization.

147242808 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1693 (or 1686 counting only the distinct ones).

The product of its (nonzero) digits is 28672, while the sum is 36.

The square root of 147242808 is about 12134.3647546956. The cubic root of 147242808 is about 528.0536274731.

The spelling of 147242808 in words is "one hundred forty-seven million, two hundred forty-two thousand, eight hundred eight".

Divisors: 1 2 3 4 6 8 9 12 18 24 31 36 41 62 72 82 93 123 124 164 186 246 248 279 328 369 372 492 558 738 744 984 1116 1271 1476 1609 2232 2542 2952 3218 3813 4827 5084 6436 7626 9654 10168 11439 12872 14481 15252 19308 22878 28962 30504 38616 45756 49879 57924 65969 91512 99758 115848 131938 149637 197907 199516 263876 299274 395814 399032 448911 527752 593721 598548 791628 897822 1187442 1197096 1583256 1795644 2045039 2374884 3591288 4090078 4749768 6135117 8180156 12270234 16360312 18405351 24540468 36810702 49080936 73621404 147242808