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147405830 = 25112139371
BaseRepresentation
bin10001100100100…
…11110000000110
3101021100222210012
420302103300012
5300213441310
622343230222
73436633415
oct1062236006
9337328705
10147405830
1176230200
1241448372
13247011b0
141581147c
15ce1ac05
hex8c93c06

147405830 has 48 divisors (see below), whose sum is σ = 314111952. Its totient is φ = 49473600.

The previous prime is 147405809. The next prime is 147405851. The reversal of 147405830 is 38504741.

147405830 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (147405809) and next prime (147405851).

It is a Curzon number.

It is a congruent 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 23 ways as a sum of consecutive naturals, for example, 11045 + ... + 20415.

It is an arithmetic number, because the mean of its divisors is an integer number (6543999).

Almost surely, 2147405830 is an apocalyptic number.

147405830 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147405830 is an abundant number, since it is smaller than the sum of its proper divisors (166706122).

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

147405830 is a wasteful number, since it uses less digits than its factorization.

147405830 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9413 (or 9402 counting only the distinct ones).

The product of its (nonzero) digits is 13440, while the sum is 32.

The square root of 147405830 is about 12141.0802649517. The cubic root of 147405830 is about 528.2484363273.

The spelling of 147405830 in words is "one hundred forty-seven million, four hundred five thousand, eight hundred thirty".

Divisors: 1 2 5 10 11 13 22 26 55 65 110 121 130 143 242 286 605 715 1210 1430 1573 3146 7865 9371 15730 18742 46855 93710 103081 121823 206162 243646 515405 609115 1030810 1133891 1218230 1340053 2267782 2680106 5669455 6700265 11338910 13400530 14740583 29481166 73702915 147405830