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30729204 = 223211731063
BaseRepresentation
bin111010100111…
…0001111110100
32010211012112200
41311032033310
530331313304
63014344500
7522123342
oct165161764
963735480
1030729204
1116389340
12a35b130
13649bb7c
14411c992
152a6ee39
hex1d4e3f4

30729204 has 72 divisors (see below), whose sum is σ = 85979712. Its totient is φ = 9175680.

The previous prime is 30729199. The next prime is 30729221. The reversal of 30729204 is 40292703.

It is a hoax number, since the sum of its digits (27) coincides with the sum of the digits of its distinct prime factors.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 28377 + ... + 29439.

Almost surely, 230729204 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 30729204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (42989856).

30729204 is an abundant number, since it is smaller than the sum of its proper divisors (55250508).

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

30729204 is a wasteful number, since it uses less digits than its factorization.

30729204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1157 (or 1152 counting only the distinct ones).

The product of its (nonzero) digits is 3024, while the sum is 27.

The square root of 30729204 is about 5543.3928238940. The cubic root of 30729204 is about 313.2206863315.

The spelling of 30729204 in words is "thirty million, seven hundred twenty-nine thousand, two hundred four".

Divisors: 1 2 3 4 6 9 11 12 18 22 33 36 44 66 73 99 132 146 198 219 292 396 438 657 803 876 1063 1314 1606 2126 2409 2628 3189 3212 4252 4818 6378 7227 9567 9636 11693 12756 14454 19134 23386 28908 35079 38268 46772 70158 77599 105237 140316 155198 210474 232797 310396 420948 465594 698391 853589 931188 1396782 1707178 2560767 2793564 3414356 5121534 7682301 10243068 15364602 30729204