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25734340 = 2253141507
BaseRepresentation
bin110001000101…
…0110011000100
31210102102212201
41202022303010
523041444330
62315324244
7431511142
oct142126304
953372781
1025734340
1113587655
128750684
135440528
1435bc592
1523d4eca
hex188acc4

25734340 has 24 divisors (see below), whose sum is σ = 55786752. Its totient is φ = 9961440.

The previous prime is 25734337. The next prime is 25734361. The reversal of 25734340 is 4343752.

It is a hoax number, since the sum of its digits (28) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 25734299 and 25734308.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20134 + ... + 21373.

It is an arithmetic number, because the mean of its divisors is an integer number (2324448).

Almost surely, 225734340 is an apocalyptic number.

25734340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

25734340 is an abundant number, since it is smaller than the sum of its proper divisors (30052412).

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

25734340 is a wasteful number, since it uses less digits than its factorization.

25734340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41547 (or 41545 counting only the distinct ones).

The product of its (nonzero) digits is 10080, while the sum is 28.

The square root of 25734340 is about 5072.9025222253. The cubic root of 25734340 is about 295.2371548869.

The spelling of 25734340 in words is "twenty-five million, seven hundred thirty-four thousand, three hundred forty".

Divisors: 1 2 4 5 10 20 31 62 124 155 310 620 41507 83014 166028 207535 415070 830140 1286717 2573434 5146868 6433585 12867170 25734340