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147400505 = 5731731861
BaseRepresentation
bin10001100100100…
…10011100111001
3101021100201110222
420302102130321
5300213304010
622343145425
73436612040
oct1062223471
9337321428
10147400505
11762271aa
1241445275
13246cb945
141580d557
15ce19355
hex8c92739

147400505 has 32 divisors (see below), whose sum is σ = 211642368. Its totient is φ = 96422400.

The previous prime is 147400483. The next prime is 147400531. The reversal of 147400505 is 505004741.

It is not a de Polignac number, because 147400505 - 26 = 147400441 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 78275 + ... + 80135.

It is an arithmetic number, because the mean of its divisors is an integer number (6613824).

Almost surely, 2147400505 is an apocalyptic number.

It is an amenable number.

147400505 is a deficient number, since it is larger than the sum of its proper divisors (64241863).

147400505 is a wasteful number, since it uses less digits than its factorization.

147400505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1977.

The product of its (nonzero) digits is 2800, while the sum is 26.

The square root of 147400505 is about 12140.8609661753. The cubic root of 147400505 is about 528.2420753017.

The spelling of 147400505 in words is "one hundred forty-seven million, four hundred thousand, five hundred five".

Divisors: 1 5 7 31 35 73 155 217 365 511 1085 1861 2263 2555 9305 11315 13027 15841 57691 65135 79205 135853 288455 403837 679265 950971 2019185 4211443 4754855 21057215 29480101 147400505