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25208880 = 2435105037
BaseRepresentation
bin110000000101…
…0100000110000
31202102202002020
41200022200300
522423141010
62300151440
7424162164
oct140124060
952382066
1025208880
1113258894
128538580
1352b82c8
1434c2ca4
15232e470
hex180a830

25208880 has 40 divisors (see below), whose sum is σ = 78148272. Its totient is φ = 6722304.

The previous prime is 25208861. The next prime is 25208899. The reversal of 25208880 is 8880252.

It is an interprime number because it is at equal distance from previous prime (25208861) and next prime (25208899).

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 52279 + ... + 52758.

Almost surely, 225208880 is an apocalyptic number.

25208880 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25208880 is an abundant number, since it is smaller than the sum of its proper divisors (52939392).

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

25208880 is a wasteful number, since it uses less digits than its factorization.

25208880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 105053 (or 105047 counting only the distinct ones).

The product of its (nonzero) digits is 10240, while the sum is 33.

The square root of 25208880 is about 5020.8445504716. The cubic root of 25208880 is about 293.2138746818.

The spelling of 25208880 in words is "twenty-five million, two hundred eight thousand, eight hundred eighty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 105037 210074 315111 420148 525185 630222 840296 1050370 1260444 1575555 1680592 2100740 2520888 3151110 4201480 5041776 6302220 8402960 12604440 25208880