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30455211553 = 137952315669
BaseRepresentation
bin11100010111010001…
…011010011000100001
32220121110212001020021
4130113101122120201
5444333013232203
621554012513441
72125465012144
oct342721323041
986543761207
1030455211553
1111a0919a228
125a9b47b881
132b44797c50
14168caa205b
15bd3a965bd
hex71745a621

30455211553 has 16 divisors (see below), whose sum is σ = 33225292800. Its totient is φ = 27746447040.

The previous prime is 30455211551. The next prime is 30455211583. The reversal of 30455211553 is 35511255403.

It is not a de Polignac number, because 30455211553 - 21 = 30455211551 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (30455211551) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5369403 + ... + 5375071.

It is an arithmetic number, because the mean of its divisors is an integer number (2076580800).

Almost surely, 230455211553 is an apocalyptic number.

It is an amenable number.

30455211553 is a deficient number, since it is larger than the sum of its proper divisors (2770081247).

30455211553 is a wasteful number, since it uses less digits than its factorization.

30455211553 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10992.

The product of its (nonzero) digits is 45000, while the sum is 34.

Adding to 30455211553 its reverse (35511255403), we get a palindrome (65966466956).

The spelling of 30455211553 in words is "thirty billion, four hundred fifty-five million, two hundred eleven thousand, five hundred fifty-three".

Divisors: 1 13 79 1027 5231 5669 68003 73697 413249 447851 5372237 5822063 29654539 385509007 2342708581 30455211553