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40025125 = 537149307
BaseRepresentation
bin1001100010101…
…1110000100101
32210022111011001
42120223300211
540221301000
63545513301
7664131220
oct230536045
983274131
1040025125
1120658518
12114a2831
1383a510a
14545c5b7
1537a946a
hex262bc25

40025125 has 32 divisors (see below), whose sum is σ = 57657600. Its totient is φ = 27172800.

The previous prime is 40025119. The next prime is 40025147. The reversal of 40025125 is 52152004.

It is a de Polignac number, because none of the positive numbers 2k-40025125 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 130222 + ... + 130528.

It is an arithmetic number, because the mean of its divisors is an integer number (1801800).

Almost surely, 240025125 is an apocalyptic number.

It is an amenable number.

40025125 is a deficient number, since it is larger than the sum of its proper divisors (17632475).

40025125 is a wasteful number, since it uses less digits than its factorization.

40025125 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 478 (or 468 counting only the distinct ones).

The product of its (nonzero) digits is 400, while the sum is 19.

The square root of 40025125 is about 6326.5413141779. The cubic root of 40025125 is about 342.0667795910.

Adding to 40025125 its reverse (52152004), we get a palindrome (92177129).

The spelling of 40025125 in words is "forty million, twenty-five thousand, one hundred twenty-five".

Divisors: 1 5 7 25 35 125 149 175 307 745 875 1043 1535 2149 3725 5215 7675 10745 18625 26075 38375 45743 53725 130375 228715 268625 320201 1143575 1601005 5717875 8005025 40025125