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1225125024 = 25312761719
BaseRepresentation
bin100100100000101…
…1110110010100000
310011101021210120220
41021001132302200
510002113000044
6321322403040
742234251034
oct11101366240
93141253526
101225125024
11579607622
122a2360480
13166a80566
14b89d01c4
1572850019
hex4905eca0

1225125024 has 24 divisors (see below), whose sum is σ = 3215953440. Its totient is φ = 408374976.

The previous prime is 1225125023. The next prime is 1225125047. The reversal of 1225125024 is 4205215221.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a junction number, because it is equal to n+sod(n) for n = 1225124985 and 1225125003.

It is not an unprimeable number, because it can be changed into a prime (1225125023) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6380764 + ... + 6380955.

It is an arithmetic number, because the mean of its divisors is an integer number (133998060).

Almost surely, 21225125024 is an apocalyptic number.

It is an amenable number.

1225125024 is an abundant number, since it is smaller than the sum of its proper divisors (1990828416).

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

1225125024 is a wasteful number, since it uses less digits than its factorization.

1225125024 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12761732 (or 12761724 counting only the distinct ones).

The product of its (nonzero) digits is 1600, while the sum is 24.

The square root of 1225125024 is about 35001.7860115738. The cubic root of 1225125024 is about 1070.0238804464.

The spelling of 1225125024 in words is "one billion, two hundred twenty-five million, one hundred twenty-five thousand, twenty-four".

Divisors: 1 2 3 4 6 8 12 16 24 32 48 96 12761719 25523438 38285157 51046876 76570314 102093752 153140628 204187504 306281256 408375008 612562512 1225125024