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1925675028 = 223253490973
BaseRepresentation
bin111001011000111…
…0111100000010100
311222012111102112100
41302301313200110
512420433100103
6515025522100
765501652624
oct16261674024
94865442470
101925675028
118a8aa2172
12458aa3330
13248c530a4
14143a6c884
15b40d05a3
hex72c77814

1925675028 has 18 divisors (see below), whose sum is σ = 4867678634. Its totient is φ = 641891664.

The previous prime is 1925675021. The next prime is 1925675029. The reversal of 1925675028 is 8205765291.

1925675028 is a `hidden beast` number, since 1 + 92 + 56 + 7 + 502 + 8 = 666.

It can be written as a sum of positive squares in only one way, i.e., 1017737604 + 907937424 = 31902^2 + 30132^2 .

It is a tau number, because it is divible by the number of its divisors (18).

It is a hoax number, since the sum of its digits (45) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1925675021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 26745451 + ... + 26745522.

Almost surely, 21925675028 is an apocalyptic number.

1925675028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1925675028 is an abundant number, since it is smaller than the sum of its proper divisors (2942003606).

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

1925675028 is a wasteful number, since it uses less digits than its factorization.

1925675028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53490983 (or 53490978 counting only the distinct ones).

The product of its (nonzero) digits is 302400, while the sum is 45.

The square root of 1925675028 is about 43882.5139206951. The cubic root of 1925675028 is about 1244.1163556071.

The spelling of 1925675028 in words is "one billion, nine hundred twenty-five million, six hundred seventy-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 9 12 18 36 53490973 106981946 160472919 213963892 320945838 481418757 641891676 962837514 1925675028