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30881402029 = 314721195197
BaseRepresentation
bin11100110000101011…
…001100110010101101
32221201011210202122201
4130300223030302231
51001221114331104
622104155341501
72142161405032
oct346053146255
987634722581
1030881402029
1112107823465
125b9a151891
132bb1b7956a
1416cd523389
15c0b1d00a4
hex730acccad

30881402029 has 8 divisors (see below), whose sum is σ = 32555824128. Its totient is φ = 29249370480.

The previous prime is 30881402009. The next prime is 30881402081. The reversal of 30881402029 is 92020418803.

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

It is not a de Polignac number, because 30881402029 - 233 = 22291467437 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30881402009) 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, 10596142 + ... + 10599055.

It is an arithmetic number, because the mean of its divisors is an integer number (4069478016).

Almost surely, 230881402029 is an apocalyptic number.

It is an amenable number.

30881402029 is a deficient number, since it is larger than the sum of its proper divisors (1674422099).

30881402029 is a wasteful number, since it uses less digits than its factorization.

30881402029 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21195275.

The product of its (nonzero) digits is 27648, while the sum is 37.

The spelling of 30881402029 in words is "thirty billion, eight hundred eighty-one million, four hundred two thousand, twenty-nine".

Divisors: 1 31 47 1457 21195197 657051107 996174259 30881402029