Search a number
-
+
30561551606012 = 2272857398995773
BaseRepresentation
bin1101111001011101010100…
…11011010110000011111100
311000012122201002010000210012
412330232222123112003330
513001210024202343022
6144555441043002352
76302666511315140
oct674565233260374
9130178632100705
1030561551606012
119813099164129
1235170499693b8
131408c3260786b
1477928915b220
1537ee9949ede2
hex1bcbaa6d60fc

30561551606012 has 48 divisors (see below), whose sum is σ = 61160464236480. Its totient is φ = 13089804360192.

The previous prime is 30561551605951. The next prime is 30561551606023. The reversal of 30561551606012 is 21060615516503.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 319056158 + ... + 319151930.

It is an arithmetic number, because the mean of its divisors is an integer number (1274176338260).

Almost surely, 230561551606012 is an apocalyptic number.

It is an amenable number.

30561551606012 is an abundant number, since it is smaller than the sum of its proper divisors (30598912630468).

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

30561551606012 is a wasteful number, since it uses less digits than its factorization.

30561551606012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 102630 (or 102628 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The spelling of 30561551606012 in words is "thirty trillion, five hundred sixty-one billion, five hundred fifty-one million, six hundred six thousand, twelve".

Divisors: 1 2 4 7 14 28 2857 3989 5714 7978 11428 15956 19999 27923 39998 55846 79996 95773 111692 191546 383092 670411 1340822 2681644 11396573 22793146 45586292 79776011 159552022 273623461 319104044 382038497 547246922 764076994 1094493844 1528153988 1915364227 2674269479 3830728454 5348538958 7661456908 10697077916 1091483985929 2182967971858 4365935943716 7640387901503 15280775803006 30561551606012