Search a number
-
+
41780025 = 3252741647
BaseRepresentation
bin1001111101100…
…0001100111001
32220121122102100
42133120030321
541143430100
64051254013
71015060440
oct237301471
986548370
1041780025
1121646a51
1211baa309
13886ab11
145797d57
153a04400
hex27d8339

41780025 has 72 divisors (see below), whose sum is σ = 87744384. Its totient is φ = 18604800.

The previous prime is 41780023. The next prime is 41780087. The reversal of 41780025 is 52008714.

It is not a de Polignac number, because 41780025 - 21 = 41780023 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (41780023) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 64252 + ... + 64898.

It is an arithmetic number, because the mean of its divisors is an integer number (1218672).

Almost surely, 241780025 is an apocalyptic number.

41780025 is a gapful number since it is divisible by the number (45) formed by its first and last digit.

It is an amenable number.

41780025 is an abundant number, since it is smaller than the sum of its proper divisors (45964359).

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

41780025 is a wasteful number, since it uses less digits than its factorization.

41780025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711 (or 703 counting only the distinct ones).

The product of its (nonzero) digits is 2240, while the sum is 27.

The square root of 41780025 is about 6463.7469783400. The cubic root of 41780025 is about 346.9947456067.

Adding to 41780025 its reverse (52008714), we get a palindrome (93788739).

The spelling of 41780025 in words is "forty-one million, seven hundred eighty thousand, twenty-five".

Divisors: 1 3 5 7 9 15 21 25 35 41 45 63 75 105 123 175 205 225 287 315 369 525 615 647 861 1025 1435 1575 1845 1941 2583 3075 3235 4305 4529 5823 7175 9225 9705 12915 13587 16175 21525 22645 26527 29115 40761 48525 64575 67935 79581 113225 132635 145575 185689 203805 238743 339675 397905 557067 663175 928445 1019025 1193715 1671201 1989525 2785335 4642225 5968575 8356005 13926675 41780025