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34920719 = 199175481
BaseRepresentation
bin1000010100110…
…1100100001111
32102201011012222
42011031210033
532414430334
63244245555
7602551451
oct205154417
972634188
1034920719
11187914a9
12b8408bb
137308962
1448d02d1
1530ebd2e
hex214d90f

34920719 has 4 divisors (see below), whose sum is σ = 35096400. Its totient is φ = 34745040.

The previous prime is 34920709. The next prime is 34920733. The reversal of 34920719 is 91702943.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-34920719 is a prime.

It is a super-2 number, since 2×349207192 = 2438913230953922, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (34920709) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 87542 + ... + 87939.

It is an arithmetic number, because the mean of its divisors is an integer number (8774100).

Almost surely, 234920719 is an apocalyptic number.

34920719 is a deficient number, since it is larger than the sum of its proper divisors (175681).

34920719 is a wasteful number, since it uses less digits than its factorization.

34920719 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175680.

The product of its (nonzero) digits is 13608, while the sum is 35.

The square root of 34920719 is about 5909.3755169222. The cubic root of 34920719 is about 326.8594600984.

The spelling of 34920719 in words is "thirty-four million, nine hundred twenty thousand, seven hundred nineteen".

Divisors: 1 199 175481 34920719