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34019881 = 710944587
BaseRepresentation
bin1000000111000…
…1101000101001
32101000101111121
42001301220221
532202114011
63213055241
7562110220
oct201615051
971011447
1034019881
1118226705
12b487521
13708190c
144737cb7
152ebee71
hex2071a29

34019881 has 8 divisors (see below), whose sum is σ = 39237440. Its totient is φ = 28891728.

The previous prime is 34019879. The next prime is 34019897. The reversal of 34019881 is 18891043.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 34019881 - 21 = 34019879 is a prime.

It is a super-2 number, since 2×340198812 = 2314704606508322, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (34019831) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21531 + ... + 23056.

It is an arithmetic number, because the mean of its divisors is an integer number (4904680).

Almost surely, 234019881 is an apocalyptic number.

It is an amenable number.

34019881 is a deficient number, since it is larger than the sum of its proper divisors (5217559).

34019881 is a wasteful number, since it uses less digits than its factorization.

34019881 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44703.

The product of its (nonzero) digits is 6912, while the sum is 34.

The square root of 34019881 is about 5832.6564273922. The cubic root of 34019881 is about 324.0243116696.

The spelling of 34019881 in words is "thirty-four million, nineteen thousand, eight hundred eighty-one".

Divisors: 1 7 109 763 44587 312109 4859983 34019881