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30060613920 = 253562626279
BaseRepresentation
bin11011111111110000…
…001001000100100000
32212120222100102001010
4123333300021010200
5443031004121140
621450515140520
72112634000551
oct337760110440
985528312033
1030060613920
1111826484187
1259ab2a4740
132ab0ac861c
141652506328
15bae0ed880
hex6ffc09120

30060613920 has 48 divisors (see below), whose sum is σ = 94690935360. Its totient is φ = 8016163584.

The previous prime is 30060613901. The next prime is 30060613927. The reversal of 30060613920 is 2931606003.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (30060613927) 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, 31312660 + ... + 31313619.

It is an arithmetic number, because the mean of its divisors is an integer number (1972727820).

Almost surely, 230060613920 is an apocalyptic number.

30060613920 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30060613920 is an abundant number, since it is smaller than the sum of its proper divisors (64630321440).

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

30060613920 is a wasteful number, since it uses less digits than its factorization.

30060613920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62626297 (or 62626289 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 30.

The spelling of 30060613920 in words is "thirty billion, sixty million, six hundred thirteen thousand, nine hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 32 40 48 60 80 96 120 160 240 480 62626279 125252558 187878837 250505116 313131395 375757674 501010232 626262790 751515348 939394185 1002020464 1252525580 1503030696 1878788370 2004040928 2505051160 3006061392 3757576740 5010102320 6012122784 7515153480 10020204640 15030306960 30060613920