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30202042120 = 23510147915607
BaseRepresentation
bin11100001000001011…
…101001011100001000
32212221211110201001121
4130020023221130020
5443323210321440
621512530325024
72116302056635
oct341013513410
985854421047
1030202042120
11118992a1298
125a2a729774
132b041b5a53
1416671dd18c
15bbb73834a
hex7082e9708

30202042120 has 64 divisors (see below), whose sum is σ = 68775091200. Its totient is φ = 11935468800.

The previous prime is 30202042099. The next prime is 30202042153. The reversal of 30202042120 is 2124020203.

It is a junction number, because it is equal to n+sod(n) for n = 30202042094 and 30202042103.

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, 1927357 + ... + 1942963.

It is an arithmetic number, because the mean of its divisors is an integer number (1074610800).

Almost surely, 230202042120 is an apocalyptic number.

It is an amenable number.

30202042120 is an abundant number, since it is smaller than the sum of its proper divisors (38573049080).

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

30202042120 is a wasteful number, since it uses less digits than its factorization.

30202042120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16198 (or 16194 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 30202042120 its reverse (2124020203), we get a palindrome (32326062323).

The spelling of 30202042120 in words is "thirty billion, two hundred two million, forty-two thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 101 202 404 479 505 808 958 1010 1916 2020 2395 3832 4040 4790 9580 15607 19160 31214 48379 62428 78035 96758 124856 156070 193516 241895 312140 387032 483790 624280 967580 1576307 1935160 3152614 6305228 7475753 7881535 12610456 14951506 15763070 29903012 31526140 37378765 59806024 63052280 74757530 149515060 299030120 755051053 1510102106 3020204212 3775255265 6040408424 7550510530 15101021060 30202042120