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30660480 = 273255323
BaseRepresentation
bin111010011110…
…1011110000000
32010200201021100
41310331132000
530322113410
63013054400
7521416104
oct164753600
963621240
1030660480
1116341744
12a327400
1364767c6
144101904
152a598c0
hex1d3d780

30660480 has 96 divisors (see below), whose sum is σ = 105894360. Its totient is φ = 8174592.

The previous prime is 30660479. The next prime is 30660499. The reversal of 30660480 is 8406603.

It is a tau number, because it is divible by the number of its divisors (96).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3099 + ... + 8421.

Almost surely, 230660480 is an apocalyptic number.

30660480 is a gapful number since it is divisible by the number (30) 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 30660480, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (52947180).

30660480 is an abundant number, since it is smaller than the sum of its proper divisors (75233880).

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

30660480 is a wasteful number, since it uses less digits than its factorization.

30660480 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5348 (or 5333 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 27.

The square root of 30660480 is about 5537.1906234118. The cubic root of 30660480 is about 312.9870123597.

The spelling of 30660480 in words is "thirty million, six hundred sixty thousand, four hundred eighty".

Divisors: 1 2 3 4 5 6 8 9 10 12 15 16 18 20 24 30 32 36 40 45 48 60 64 72 80 90 96 120 128 144 160 180 192 240 288 320 360 384 480 576 640 720 960 1152 1440 1920 2880 5323 5760 10646 15969 21292 26615 31938 42584 47907 53230 63876 79845 85168 95814 106460 127752 159690 170336 191628 212920 239535 255504 319380 340672 383256 425840 479070 511008 638760 681344 766512 851680 958140 1022016 1277520 1533024 1703360 1916280 2044032 2555040 3066048 3406720 3832560 5110080 6132096 7665120 10220160 15330240 30660480