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30545766672 = 2433120528069
BaseRepresentation
bin11100011100101010…
…110110100100010000
32220211210020201111120
4130130222312210100
51000024204013142
622011005442240
72130644506221
oct343452664420
986753221446
1030545766672
1111a5531a673
125b05870380
132b5a482765
14169ab15248
15bdb9d27ec
hex71cab6910

30545766672 has 40 divisors (see below), whose sum is σ = 81455381760. Its totient is φ = 9853472640.

The previous prime is 30545766571. The next prime is 30545766677. The reversal of 30545766672 is 27666754503.

It is not an unprimeable number, because it can be changed into a prime (30545766677) 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, 10262547 + ... + 10265522.

It is an arithmetic number, because the mean of its divisors is an integer number (2036384544).

Almost surely, 230545766672 is an apocalyptic number.

It is an amenable number.

30545766672 is an abundant number, since it is smaller than the sum of its proper divisors (50909615088).

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

30545766672 is a wasteful number, since it uses less digits than its factorization.

30545766672 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20528111 (or 20528105 counting only the distinct ones).

The product of its (nonzero) digits is 6350400, while the sum is 51.

The spelling of 30545766672 in words is "thirty billion, five hundred forty-five million, seven hundred sixty-six thousand, six hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 16 24 31 48 62 93 124 186 248 372 496 744 1488 20528069 41056138 61584207 82112276 123168414 164224552 246336828 328449104 492673656 636370139 985347312 1272740278 1909110417 2545480556 3818220834 5090961112 7636441668 10181922224 15272883336 30545766672