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30492468 = 22323189307
BaseRepresentation
bin111010001010…
…0011100110100
32010101011210200
41310110130310
530301224333
63005320500
7520116216
oct164243464
963334720
1030492468
1116237496
12a266130
1364181a6
14409a5b6
152a24c13
hex1d14734

30492468 has 72 divisors (see below), whose sum is σ = 80720640. Its totient is φ = 9694080.

The previous prime is 30492467. The next prime is 30492491. The reversal of 30492468 is 86429403.

It is a happy number.

It is a hoax number, since the sum of its digits (36) coincides with the sum of the digits of its distinct prime factors.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30492467) 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, 99171 + ... + 99477.

It is an arithmetic number, because the mean of its divisors is an integer number (1121120).

Almost surely, 230492468 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30492468, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (40360320).

30492468 is an abundant number, since it is smaller than the sum of its proper divisors (50228172).

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

30492468 is a wasteful number, since it uses less digits than its factorization.

30492468 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437 (or 432 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The square root of 30492468 is about 5521.9985512494. The cubic root of 30492468 is about 312.4142672552.

The spelling of 30492468 in words is "thirty million, four hundred ninety-two thousand, four hundred sixty-eight".

Divisors: 1 2 3 4 6 9 12 18 31 36 62 89 93 124 178 186 267 279 307 356 372 534 558 614 801 921 1068 1116 1228 1602 1842 2759 2763 3204 3684 5518 5526 8277 9517 11036 11052 16554 19034 24831 27323 28551 33108 38068 49662 54646 57102 81969 85653 99324 109292 114204 163938 171306 245907 327876 342612 491814 847013 983628 1694026 2541039 3388052 5082078 7623117 10164156 15246234 30492468