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72029490 = 23513214207
BaseRepresentation
bin1000100101100…
…01010100110010
312000112110212220
410102301110302
5121414420430
611051501510
71533145341
oct422612462
9160473786
1072029490
1137727905
1220157896
1311bcc500
1497cdb58
1564cc110
hex44b1532

72029490 has 48 divisors (see below), whose sum is σ = 187204608. Its totient is φ = 17729088.

The previous prime is 72029473. The next prime is 72029509. The reversal of 72029490 is 9492027.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2034 + ... + 12173.

It is an arithmetic number, because the mean of its divisors is an integer number (3900096).

Almost surely, 272029490 is an apocalyptic number.

72029490 is an abundant number, since it is smaller than the sum of its proper divisors (115175118).

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

72029490 is a wasteful number, since it uses less digits than its factorization.

72029490 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14243 (or 14230 counting only the distinct ones).

The product of its (nonzero) digits is 9072, while the sum is 33.

The square root of 72029490 is about 8487.0189112550. The cubic root of 72029490 is about 416.0735547021.

The spelling of 72029490 in words is "seventy-two million, twenty-nine thousand, four hundred ninety".

Divisors: 1 2 3 5 6 10 13 15 26 30 39 65 78 130 169 195 338 390 507 845 1014 1690 2535 5070 14207 28414 42621 71035 85242 142070 184691 213105 369382 426210 554073 923455 1108146 1846910 2400983 2770365 4801966 5540730 7202949 12004915 14405898 24009830 36014745 72029490