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155213472260 = 225711461218629
BaseRepresentation
bin1001000010001101110…
…0011010001000000100
3112211122002112100022202
42100203130122020010
510020334122103020
6155145403214032
714133222513560
oct2204334321004
9484562470282
10155213472260
115a909a60010
12260b8817318
13118377014a2
147725d406a0
154086651e75
hex242371a204

155213472260 has 96 divisors (see below), whose sum is σ = 407260465920. Its totient is φ = 48273062400.

The previous prime is 155213472259. The next prime is 155213472269. The reversal of 155213472260 is 62274312551.

It is not an unprimeable number, because it can be changed into a prime (155213472269) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 600626 + ... + 819254.

It is an arithmetic number, because the mean of its divisors is an integer number (4242296520).

Almost surely, 2155213472260 is an apocalyptic number.

155213472260 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155213472260, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (203630232960).

155213472260 is an abundant number, since it is smaller than the sum of its proper divisors (252046993660).

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

155213472260 is a wasteful number, since it uses less digits than its factorization.

155213472260 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219117 (or 219115 counting only the distinct ones).

The product of its (nonzero) digits is 100800, while the sum is 38.

The spelling of 155213472260 in words is "one hundred fifty-five billion, two hundred thirteen million, four hundred seventy-two thousand, two hundred sixty".

Divisors: 1 2 4 5 7 10 11 14 20 22 28 35 44 55 70 77 110 140 154 220 308 385 461 770 922 1540 1844 2305 3227 4610 5071 6454 9220 10142 12908 16135 20284 25355 32270 35497 50710 64540 70994 101420 141988 177485 218629 354970 437258 709940 874516 1093145 1530403 2186290 2404919 3060806 4372580 4809838 6121612 7652015 9619676 12024595 15304030 16834433 24049190 30608060 33668866 48098380 67337732 84172165 100787969 168344330 201575938 336688660 403151876 503939845 705515783 1007879690 1108667659 1411031566 2015759380 2217335318 2822063132 3527578915 4434670636 5543338295 7055157830 7760673613 11086676590 14110315660 15521347226 22173353180 31042694452 38803368065 77606736130 155213472260