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71494030 = 257149403
BaseRepresentation
bin1000100001011…
…10100110001110
311222112021101001
410100232212032
5121300302110
611032210514
71525455256
oct420564616
9158467331
1071494030
11373a1583
121bb39a3a
1311a7287a
1496d0966
15642363a
hex442e98e

71494030 has 8 divisors (see below), whose sum is σ = 128689272. Its totient is φ = 28597608.

The previous prime is 71494021. The next prime is 71494043. The reversal of 71494030 is 3049417.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×714940302 = 10222792651281800, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 71494030.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3574692 + ... + 3574711.

It is an arithmetic number, because the mean of its divisors is an integer number (16086159).

Almost surely, 271494030 is an apocalyptic number.

71494030 is a deficient number, since it is larger than the sum of its proper divisors (57195242).

71494030 is a wasteful number, since it uses less digits than its factorization.

71494030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7149410.

The product of its (nonzero) digits is 3024, while the sum is 28.

The square root of 71494030 is about 8455.4142417743. The cubic root of 71494030 is about 415.0399729242.

The spelling of 71494030 in words is "seventy-one million, four hundred ninety-four thousand, thirty".

Divisors: 1 2 5 10 7149403 14298806 35747015 71494030