Search a number
-
+
30215272020 = 22351213415159
BaseRepresentation
bin11100001000111110…
…000111011001010100
32212222202100212001220
4130020332013121110
5443340102201040
621514122050340
72116522401033
oct341076073124
985882325056
1030215272020
11118a580809a
125a330499b0
132b06b687ab
141668c8471a
15bbc99d2d0
hex708f87654

30215272020 has 48 divisors (see below), whose sum is σ = 84672712320. Its totient is φ = 8050743936.

The previous prime is 30215272019. The next prime is 30215272037. The reversal of 30215272020 is 2027251203.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 134800 + ... + 280359.

It is an arithmetic number, because the mean of its divisors is an integer number (1764014840).

Almost surely, 230215272020 is an apocalyptic number.

30215272020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30215272020 is an abundant number, since it is smaller than the sum of its proper divisors (54457440300).

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

30215272020 is a wasteful number, since it uses less digits than its factorization.

30215272020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 416384 (or 416382 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 24.

The spelling of 30215272020 in words is "thirty billion, two hundred fifteen million, two hundred seventy-two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1213 2426 3639 4852 6065 7278 12130 14556 18195 24260 36390 72780 415159 830318 1245477 1660636 2075795 2490954 4151590 4981908 6227385 8303180 12454770 24909540 503587867 1007175734 1510763601 2014351468 2517939335 3021527202 5035878670 6043054404 7553818005 10071757340 15107636010 30215272020