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30554235145 = 578380913001
BaseRepresentation
bin11100011101001011…
…001010000100001001
32220212101011222001201
4130131023022010021
51000033341011040
622011511144201
72131106466520
oct343513120411
986771158051
1030554235145
1111a5a084105
125b08675061
132b5c1591a5
14169bcbb4b7
15bdc606a9a
hex71d2ca109

30554235145 has 32 divisors (see below), whose sum is σ = 42463491840. Its totient is φ = 20671872000.

The previous prime is 30554235139. The next prime is 30554235223. The reversal of 30554235145 is 54153245503.

It is not a de Polignac number, because 30554235145 - 217 = 30554104073 is a prime.

It is a super-2 number, since 2×305542351452 (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2343645 + ... + 2356645.

It is an arithmetic number, because the mean of its divisors is an integer number (1326984120).

Almost surely, 230554235145 is an apocalyptic number.

30554235145 is a gapful number since it is divisible by the number (35) formed by its first and last digit.

It is an amenable number.

30554235145 is a deficient number, since it is larger than the sum of its proper divisors (11909256695).

30554235145 is a wasteful number, since it uses less digits than its factorization.

30554235145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13905.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 30554235145 in words is "thirty billion, five hundred fifty-four million, two hundred thirty-five thousand, one hundred forty-five".

Divisors: 1 5 7 35 83 415 581 809 2905 4045 5663 13001 28315 65005 67147 91007 335735 455035 470029 1079083 2350145 5395415 7553581 10517809 37767905 52589045 73624663 368123315 872978147 4364890735 6110847029 30554235145