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34402412521 = 371683155243
BaseRepresentation
bin100000000010100010…
…110010011111101001
310021210120012122000201
4200002202302133221
51030424004200041
623445415032201
72325344452531
oct400242623751
9107716178021
1034402412521
11136542a0794
12680136b661
133323491219
141944dd04c1
15d6538c631
hex8028b27e9

34402412521 has 8 divisors (see below), whose sum is σ = 35334946304. Its totient is φ = 33470022960.

The previous prime is 34402412507. The next prime is 34402412557. The reversal of 34402412521 is 12521420443.

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 34402412521 - 213 = 34402404329 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 34402412521.

It is not an unprimeable number, because it can be changed into a prime (34402412591) 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, 595126 + ... + 650368.

It is an arithmetic number, because the mean of its divisors is an integer number (4416868288).

Almost surely, 234402412521 is an apocalyptic number.

It is an amenable number.

34402412521 is a deficient number, since it is larger than the sum of its proper divisors (932533783).

34402412521 is a wasteful number, since it uses less digits than its factorization.

34402412521 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72111.

The product of its (nonzero) digits is 7680, while the sum is 28.

Adding to 34402412521 its reverse (12521420443), we get a palindrome (46923832964).

The spelling of 34402412521 in words is "thirty-four billion, four hundred two million, four hundred twelve thousand, five hundred twenty-one".

Divisors: 1 37 16831 55243 622747 2043991 929794933 34402412521