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30401220244 = 2231883277657
BaseRepresentation
bin11100010100000011…
…011100111010010100
32220110201021000002011
4130110003130322110
5444230203021434
621544403354004
72124241052113
oct342403347224
986421230064
1030401220244
111199077280a
125a85382904
132b36542c25
141685849c7a
15bcde7de64
hex7140dce94

30401220244 has 24 divisors (see below), whose sum is σ = 54980726528. Its totient is φ = 14693555520.

The previous prime is 30401220197. The next prime is 30401220259. The reversal of 30401220244 is 44202210403.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29337 + ... + 248320.

Almost surely, 230401220244 is an apocalyptic number.

It is an amenable number.

30401220244 is a deficient number, since it is larger than the sum of its proper divisors (24579506284).

30401220244 is a wasteful number, since it uses less digits than its factorization.

30401220244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 278575 (or 278573 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 30401220244 its reverse (44202210403), we get a palindrome (74603430647).

The spelling of 30401220244 in words is "thirty billion, four hundred one million, two hundred twenty thousand, two hundred forty-four".

Divisors: 1 2 4 31 62 124 883 1766 3532 27373 54746 109492 277657 555314 1110628 8607367 17214734 34429468 245171131 490342262 980684524 7600305061 15200610122 30401220244