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1225874580 = 2235741257277
BaseRepresentation
bin100100100010001…
…0101110010010100
310011102200212210020
41021010111302110
510002310441310
6321350425140
742243522240
oct11104256224
93142625706
101225874580
11579a79797
122a26621b0
13166c83798
14b8b47420
157294c170
hex49115c94

1225874580 has 192 divisors, whose sum is σ = 4048676352. Its totient is φ = 271319040.

The previous prime is 1225874563. The next prime is 1225874593. The reversal of 1225874580 is 854785221.

1225874580 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 4425402 + ... + 4425678.

It is an arithmetic number, because the mean of its divisors is an integer number (21086856).

Almost surely, 21225874580 is an apocalyptic number.

1225874580 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 1225874580, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2024338176).

1225874580 is an abundant number, since it is smaller than the sum of its proper divisors (2822801772).

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

1225874580 is a wasteful number, since it uses less digits than its factorization.

1225874580 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 594 (or 592 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 42.

The square root of 1225874580 is about 35012.4917707952. The cubic root of 1225874580 is about 1070.2420566301.

The spelling of 1225874580 in words is "one billion, two hundred twenty-five million, eight hundred seventy-four thousand, five hundred eighty".