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1925028 = 223277639
BaseRepresentation
bin111010101111110100100
310121210122100
413111332210
5443100103
6105132100
722235220
oct7257644
93553570
101925028
1110a5336
1278a030
13525291
14381780
152805a3
hex1d5fa4

1925028 has 36 divisors (see below), whose sum is σ = 5561920. Its totient is φ = 549936.

The previous prime is 1925017. The next prime is 1925039. The reversal of 1925028 is 8205291.

It is an interprime number because it is at equal distance from previous prime (1925017) and next prime (1925039).

It is a tau number, because it is divible by the number of its divisors (36).

It is a junction number, because it is equal to n+sod(n) for n = 1924992 and 1925010.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3568 + ... + 4071.

21925028 is an apocalyptic number.

1925028 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

It is an amenable number.

1925028 is an abundant number, since it is smaller than the sum of its proper divisors (3636892).

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

1925028 is a wasteful number, since it uses less digits than its factorization.

1925028 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7656 (or 7651 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 27.

The square root of 1925028 is about 1387.4537830141. The cubic root of 1925028 is about 124.3976998710.

It can be divided in two parts, 192502 and 8, that added together give a triangular number (192510 = T620).

The spelling of 1925028 in words is "one million, nine hundred twenty-five thousand, twenty-eight".

Divisors: 1 2 3 4 6 7 9 12 14 18 21 28 36 42 63 84 126 252 7639 15278 22917 30556 45834 53473 68751 91668 106946 137502 160419 213892 275004 320838 481257 641676 962514 1925028