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30900631044642 = 238380937667053
BaseRepresentation
bin1110000011010100111010…
…01000110000001000100010
311001102001221002220020020020
413001222131020300020202
513022233443021412032
6145415315352054310
76336332305065102
oct701523510601042
9131361832806206
1030900631044642
11993397a713047
1235708ba994396
131431bbc873548
1478b8544bb202
15388be2906b2c
hex1c1a9d230222

30900631044642 has 32 divisors (see below), whose sum is σ = 62553592156608. Its totient is φ = 10174852704576.

The previous prime is 30900631044611. The next prime is 30900631044667. The reversal of 30900631044642 is 24644013600903.

It is a junction number, because it is equal to n+sod(n) for n = 30900631044594 and 30900631044603.

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, 196788 + ... + 7863840.

It is an arithmetic number, because the mean of its divisors is an integer number (1954799754894).

Almost surely, 230900631044642 is an apocalyptic number.

30900631044642 is an abundant number, since it is smaller than the sum of its proper divisors (31652961111966).

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

30900631044642 is a wasteful number, since it uses less digits than its factorization.

30900631044642 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7675234.

The product of its (nonzero) digits is 373248, while the sum is 42.

The spelling of 30900631044642 in words is "thirty trillion, nine hundred billion, six hundred thirty-one million, forty-four thousand, six hundred forty-two".

Divisors: 1 2 3 6 83 166 249 498 8093 16186 24279 48558 671719 1343438 2015157 4030314 7667053 15334106 23001159 46002318 636365399 1272730798 1909096197 3818192394 62049459929 124098919858 186148379787 372296759574 5150105174107 10300210348214 15450315522321 30900631044642