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39381468 = 22373712671
BaseRepresentation
bin1001011000111…
…0100111011100
32202002210012220
42112032213130
540040201333
63524025340
7655510530
oct226164734
982083186
1039381468
1120258975
1211232250
13820b159
145331bc0
1536cd8b3
hex258e9dc

39381468 has 48 divisors (see below), whose sum is σ = 107864064. Its totient is φ = 10946880.

The previous prime is 39381467. The next prime is 39381473. The reversal of 39381468 is 86418393.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (39381467) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3228 + ... + 9443.

It is an arithmetic number, because the mean of its divisors is an integer number (2247168).

Almost surely, 239381468 is an apocalyptic number.

It is an amenable number.

39381468 is an abundant number, since it is smaller than the sum of its proper divisors (68482596).

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

39381468 is a wasteful number, since it uses less digits than its factorization.

39381468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12722 (or 12720 counting only the distinct ones).

The product of its digits is 124416, while the sum is 42.

The square root of 39381468 is about 6275.4655604186. The cubic root of 39381468 is about 340.2232328700.

The spelling of 39381468 in words is "thirty-nine million, three hundred eighty-one thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 7 12 14 21 28 37 42 74 84 111 148 222 259 444 518 777 1036 1554 3108 12671 25342 38013 50684 76026 88697 152052 177394 266091 354788 468827 532182 937654 1064364 1406481 1875308 2812962 3281789 5625924 6563578 9845367 13127156 19690734 39381468