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30500551242 = 233780689289
BaseRepresentation
bin11100011001111110…
…010111101001001010
32220201122011112121000
4130121332113221022
5444431120114432
622002312355430
72126555256630
oct343176275112
986648145530
1030500551242
1111a31847647
125ab26a5b76
132b50cb1075
141694b05350
15bd7a5057c
hex719f97a4a

30500551242 has 32 divisors (see below), whose sum is σ = 77461718400. Its totient is φ = 8714443104.

The previous prime is 30500551231. The next prime is 30500551261. The reversal of 30500551242 is 24215500503.

It is a happy number.

30500551242 is a `hidden beast` number, since 30 + 500 + 5 + 5 + 124 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

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, 40344267 + ... + 40345022.

It is an arithmetic number, because the mean of its divisors is an integer number (2420678700).

Almost surely, 230500551242 is an apocalyptic number.

30500551242 is an abundant number, since it is smaller than the sum of its proper divisors (46961167158).

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

30500551242 is a wasteful number, since it uses less digits than its factorization.

30500551242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 80689307 (or 80689301 counting only the distinct ones).

The product of its (nonzero) digits is 6000, while the sum is 27.

The spelling of 30500551242 in words is "thirty billion, five hundred million, five hundred fifty-one thousand, two hundred forty-two".

Divisors: 1 2 3 6 7 9 14 18 21 27 42 54 63 126 189 378 80689289 161378578 242067867 484135734 564825023 726203601 1129650046 1452407202 1694475069 2178610803 3388950138 4357221606 5083425207 10166850414 15250275621 30500551242