Search a number
-
+
30362640420 = 2235772292001
BaseRepresentation
bin11100010001110000…
…010010000000100100
32220101000122221111210
4130101300102000210
5444140313443140
621540504431420
72123262120360
oct342160220044
986330587453
1030362640420
1111970a12162
125a74478570
132b2b555928
1416806862a0
15bca8acd80
hex711c12024

30362640420 has 48 divisors (see below), whose sum is σ = 97160450688. Its totient is φ = 6940032000.

The previous prime is 30362640419. The next prime is 30362640437. The reversal of 30362640420 is 2404626303.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36145581 + ... + 36146420.

It is an arithmetic number, because the mean of its divisors is an integer number (2024176056).

Almost surely, 230362640420 is an apocalyptic number.

30362640420 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

30362640420 is an abundant number, since it is smaller than the sum of its proper divisors (66797810268).

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

30362640420 is a wasteful number, since it uses less digits than its factorization.

30362640420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72292020 (or 72292018 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 30.

The spelling of 30362640420 in words is "thirty billion, three hundred sixty-two million, six hundred forty thousand, four hundred twenty".

Divisors: 1 2 3 4 5 6 7 10 12 14 15 20 21 28 30 35 42 60 70 84 105 140 210 420 72292001 144584002 216876003 289168004 361460005 433752006 506044007 722920010 867504012 1012088014 1084380015 1445840020 1518132021 2024176028 2168760030 2530220035 3036264042 4337520060 5060440070 6072528084 7590660105 10120880140 15181320210 30362640420