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71914290 = 2357342449
BaseRepresentation
bin1000100100101…
…01001100110010
312000022121212020
410102111030302
5121402224130
611045212310
71532155440
oct422251462
9160277766
1071914290
11376592a8
1220101096
1311b8bc46
14979db90
1564a7e10
hex4495332

71914290 has 32 divisors (see below), whose sum is σ = 197251200. Its totient is φ = 16437504.

The previous prime is 71914231. The next prime is 71914313. The reversal of 71914290 is 9241917.

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 15 ways as a sum of consecutive naturals, for example, 171015 + ... + 171434.

It is an arithmetic number, because the mean of its divisors is an integer number (6164100).

Almost surely, 271914290 is an apocalyptic number.

71914290 is a gapful number since it is divisible by the number (70) formed by its first and last digit.

71914290 is an abundant number, since it is smaller than the sum of its proper divisors (125336910).

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

71914290 is a wasteful number, since it uses less digits than its factorization.

71914290 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 342466.

The product of its (nonzero) digits is 4536, while the sum is 33.

The square root of 71914290 is about 8480.2293601058. The cubic root of 71914290 is about 415.8516212999.

The spelling of 71914290 in words is "seventy-one million, nine hundred fourteen thousand, two hundred ninety".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 35 42 70 105 210 342449 684898 1027347 1712245 2054694 2397143 3424490 4794286 5136735 7191429 10273470 11985715 14382858 23971430 35957145 71914290