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30490112 = 291731113
BaseRepresentation
bin111010001001…
…1111000000000
32010101001120102
41310103320000
530301140422
63005301532
7520106312
oct164237000
963331512
1030490112
1116235744
12a2648a8
1364170b3
1440997b2
152a24192
hex1d13e00

30490112 has 80 divisors (see below), whose sum is σ = 67174272. Its totient is φ = 13762560.

The previous prime is 30490091. The next prime is 30490151. The reversal of 30490112 is 21109403.

It is a congruent number.

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, 269768 + ... + 269880.

Almost surely, 230490112 is an apocalyptic number.

30490112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30490112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (33587136).

30490112 is an abundant number, since it is smaller than the sum of its proper divisors (36684160).

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

30490112 is a wasteful number, since it uses less digits than its factorization.

30490112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 179 (or 163 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 30490112 is about 5521.7852185684. The cubic root of 30490112 is about 312.4062208203.

Adding to 30490112 its reverse (21109403), we get a palindrome (51599515).

The spelling of 30490112 in words is "thirty million, four hundred ninety thousand, one hundred twelve".

Divisors: 1 2 4 8 16 17 31 32 34 62 64 68 113 124 128 136 226 248 256 272 452 496 512 527 544 904 992 1054 1088 1808 1921 1984 2108 2176 3503 3616 3842 3968 4216 4352 7006 7232 7684 7936 8432 8704 14012 14464 15368 15872 16864 28024 28928 30736 33728 56048 57856 59551 61472 67456 112096 119102 122944 134912 224192 238204 245888 269824 448384 476408 491776 896768 952816 983552 1793536 1905632 3811264 7622528 15245056 30490112