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55030072460 = 22511250136693
BaseRepresentation
bin110011010000000011…
…000100010010001100
312021001010210022211212
4303100003010102030
51400200144304320
641140325233552
73655460620016
oct632003042214
9167033708755
1055030072460
112137a04aa30
12a7b95628b8
13525cbca56c
1429407bd1b6
15167128b9c5
hexcd00c448c

55030072460 has 24 divisors (see below), whose sum is σ = 126068893776. Its totient is φ = 20010935360.

The previous prime is 55030072423. The next prime is 55030072463. The reversal of 55030072460 is 6427003055.

It is not an unprimeable number, because it can be changed into a prime (55030072463) 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, 125068127 + ... + 125068566.

It is an arithmetic number, because the mean of its divisors is an integer number (5252870574).

Almost surely, 255030072460 is an apocalyptic number.

It is an amenable number.

55030072460 is an abundant number, since it is smaller than the sum of its proper divisors (71038821316).

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

55030072460 is a wasteful number, since it uses less digits than its factorization.

55030072460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 250136713 (or 250136711 counting only the distinct ones).

The product of its (nonzero) digits is 25200, while the sum is 32.

The spelling of 55030072460 in words is "fifty-five billion, thirty million, seventy-two thousand, four hundred sixty".

Divisors: 1 2 4 5 10 11 20 22 44 55 110 220 250136693 500273386 1000546772 1250683465 2501366930 2751503623 5002733860 5503007246 11006014492 13757518115 27515036230 55030072460