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155434241613 = 3737200044069
BaseRepresentation
bin1001000011000010011…
…0100100111001001101
3112212012110221120221110
42100300212210321031
510021312131212423
6155223331122233
714141543153160
oct2206046447115
9485173846843
10155434241613
115aa12639322
122615a743379
131187137b141
1477473abad7
15409ac10193
hex24309a4e4d

155434241613 has 16 divisors (see below), whose sum is σ = 243253589120. Its totient is φ = 86419037376.

The previous prime is 155434241603. The next prime is 155434241693. The reversal of 155434241613 is 316142434551.

It is not a de Polignac number, because 155434241613 - 229 = 154897370701 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 (155434241603) 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, 100021258 + ... + 100022811.

It is an arithmetic number, because the mean of its divisors is an integer number (15203349320).

Almost surely, 2155434241613 is an apocalyptic number.

It is an amenable number.

155434241613 is a deficient number, since it is larger than the sum of its proper divisors (87819347507).

155434241613 is a wasteful number, since it uses less digits than its factorization.

155434241613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 200044116.

The product of its digits is 172800, while the sum is 39.

The spelling of 155434241613 in words is "one hundred fifty-five billion, four hundred thirty-four million, two hundred forty-one thousand, six hundred thirteen".

Divisors: 1 3 7 21 37 111 259 777 200044069 600132207 1400308483 4200925449 7401630553 22204891659 51811413871 155434241613