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153105121613 = 4717471864657
BaseRepresentation
bin1000111010010111000…
…1101100000101001101
3112122012011022000221202
42032211301230011031
510002024402342423
6154200250035245
714030042026643
oct2164561540515
9478164260852
10153105121613
1159a27938a64
122580a718b25
131158c97b722
1475a5d1d193
153eb14da728
hex23a5c6c14d

153105121613 has 8 divisors (see below), whose sum is σ = 156452264832. Its totient is φ = 149761711296.

The previous prime is 153105121571. The next prime is 153105121639. The reversal of 153105121613 is 316121501351.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 153105121613 - 28 = 153105121357 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153105126613) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 850220 + ... + 1014437.

It is an arithmetic number, because the mean of its divisors is an integer number (19556533104).

Almost surely, 2153105121613 is an apocalyptic number.

It is an amenable number.

153105121613 is a deficient number, since it is larger than the sum of its proper divisors (3347143219).

153105121613 is a wasteful number, since it uses less digits than its factorization.

153105121613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1866451.

The product of its (nonzero) digits is 2700, while the sum is 29.

Adding to 153105121613 its reverse (316121501351), we get a palindrome (469226622964).

The spelling of 153105121613 in words is "one hundred fifty-three billion, one hundred five million, one hundred twenty-one thousand, six hundred thirteen".

Divisors: 1 47 1747 82109 1864657 87638879 3257555779 153105121613