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147490 = 257343
BaseRepresentation
bin100100000000100010
321111022121
4210000202
514204430
63054454
71153000
oct440042
9244277
10147490
11a08a2
127142a
1352195
143ba70
152da7a
hex24022

147490 has 32 divisors (see below), whose sum is σ = 316800. Its totient is φ = 49392.

The previous prime is 147487. The next prime is 147503. The reversal of 147490 is 94741.

It is an alternating number because its digits alternate between odd and even.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3409 + ... + 3451.

It is an arithmetic number, because the mean of its divisors is an integer number (9900).

2147490 is an apocalyptic number.

147490 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

147490 is an abundant number, since it is smaller than the sum of its proper divisors (169310).

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

147490 is an equidigital number, since it uses as much as digits as its factorization.

147490 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71 (or 57 counting only the distinct ones).

The product of its (nonzero) digits is 1008, while the sum is 25.

The square root of 147490 is about 384.0442682817. The cubic root of 147490 is about 52.8348962000.

The spelling of 147490 in words is "one hundred forty-seven thousand, four hundred ninety".

Divisors: 1 2 5 7 10 14 35 43 49 70 86 98 215 245 301 343 430 490 602 686 1505 1715 2107 3010 3430 4214 10535 14749 21070 29498 73745 147490