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30530513454 = 2372925066103
BaseRepresentation
bin11100011011110000…
…101010101000101110
32220210201112210000120
4130123300222220232
51000011302412304
622005302505410
72130401040210
oct343360525056
986721483016
1030530513454
1111a47751701
125b00735266
132b57271a9c
141698aa45b0
15bda4bd0d9
hex71bc2aa2e

30530513454 has 32 divisors (see below), whose sum is σ = 72190379520. Its totient is φ = 8422210272.

The previous prime is 30530513441. The next prime is 30530513491. The reversal of 30530513454 is 45431503503.

It is a super-2 number, since 2×305305134542 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 12531834 + ... + 12534269.

It is an arithmetic number, because the mean of its divisors is an integer number (2255949360).

Almost surely, 230530513454 is an apocalyptic number.

30530513454 is an abundant number, since it is smaller than the sum of its proper divisors (41659866066).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

30530513454 is a wasteful number, since it uses less digits than its factorization.

30530513454 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25066144.

The product of its (nonzero) digits is 54000, while the sum is 33.

The spelling of 30530513454 in words is "thirty billion, five hundred thirty million, five hundred thirteen thousand, four hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 29 42 58 87 174 203 406 609 1218 25066103 50132206 75198309 150396618 175462721 350925442 526388163 726916987 1052776326 1453833974 2180750961 4361501922 5088418909 10176837818 15265256727 30530513454