Search a number
-
+
25113970 = 2572107479
BaseRepresentation
bin101111111001…
…1010101110010
31202020220220001
41133303111302
522412121340
62254140214
7423315400
oct137632562
952226801
1025113970
11131a3552
1284b166a
13528404b
14349a470
15231129a
hex17f3572

25113970 has 48 divisors (see below), whose sum is σ = 53187840. Its totient is φ = 8512224.

The previous prime is 25113967. The next prime is 25113973. The reversal of 25113970 is 7931152.

It is an interprime number because it is at equal distance from previous prime (25113967) and next prime (25113973).

It is a super-2 number, since 2×251139702 = 1261422978321800, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (25113973) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 52191 + ... + 52669.

It is an arithmetic number, because the mean of its divisors is an integer number (1108080).

Almost surely, 225113970 is an apocalyptic number.

25113970 is an abundant number, since it is smaller than the sum of its proper divisors (28073870).

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

25113970 is a wasteful number, since it uses less digits than its factorization.

25113970 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 607 (or 600 counting only the distinct ones).

The product of its (nonzero) digits is 1890, while the sum is 28.

The square root of 25113970 is about 5011.3840403625. The cubic root of 25113970 is about 292.8454340521.

The spelling of 25113970 in words is "twenty-five million, one hundred thirteen thousand, nine hundred seventy".

Divisors: 1 2 5 7 10 14 35 49 70 98 107 214 245 479 490 535 749 958 1070 1498 2395 3353 3745 4790 5243 6706 7490 10486 16765 23471 26215 33530 46942 51253 52430 102506 117355 234710 256265 358771 512530 717542 1793855 2511397 3587710 5022794 12556985 25113970