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30545256513 = 3233391130547
BaseRepresentation
bin11100011100101000…
…111010000001000001
32220211202021210200210
4130130220322001001
51000024041202023
622010550504333
72130640252662
oct343450720101
986752253623
1030545256513
1111a55001352
125b056650a9
132b5a3344a5
14169aa21369
15bdb931593
hex71ca3a041

30545256513 has 16 divisors (see below), whose sum is σ = 42510606336. Its totient is φ = 19472241360.

The previous prime is 30545256491. The next prime is 30545256601. The reversal of 30545256513 is 31565254503.

It is not a de Polignac number, because 30545256513 - 214 = 30545240129 is a prime.

It is not an unprimeable number, because it can be changed into a prime (30545256613) 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, 168706 + ... + 299252.

It is an arithmetic number, because the mean of its divisors is an integer number (2656912896).

Almost surely, 230545256513 is an apocalyptic number.

It is an amenable number.

30545256513 is a deficient number, since it is larger than the sum of its proper divisors (11965349823).

30545256513 is a wasteful number, since it uses less digits than its factorization.

30545256513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133964.

The product of its (nonzero) digits is 270000, while the sum is 39.

The spelling of 30545256513 in words is "thirty billion, five hundred forty-five million, two hundred fifty-six thousand, five hundred thirteen".

Divisors: 1 3 23 69 3391 10173 77993 130547 233979 391641 3002581 9007743 442684877 1328054631 10181752171 30545256513