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72050470 = 2519372277
BaseRepresentation
bin1000100101101…
…10011100100110
312000120112122221
410102312130212
5121421103340
611052142554
71533263452
oct422663446
9160515587
1072050470
1137741648
1220167a5a
1311c08c1b
1497d7662
1564d344a
hex44b6726

72050470 has 48 divisors (see below), whose sum is σ = 140812560. Its totient is φ = 26469504.

The previous prime is 72050443. The next prime is 72050491. The reversal of 72050470 is 7405027.

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 23 ways as a sum of consecutive naturals, for example, 259972 + ... + 260248.

It is an arithmetic number, because the mean of its divisors is an integer number (2933595).

Almost surely, 272050470 is an apocalyptic number.

72050470 is a deficient number, since it is larger than the sum of its proper divisors (68762090).

72050470 is a wasteful number, since it uses less digits than its factorization.

72050470 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 377 (or 340 counting only the distinct ones).

The product of its (nonzero) digits is 1960, while the sum is 25.

The square root of 72050470 is about 8488.2548265235. The cubic root of 72050470 is about 416.1139473051.

Adding to 72050470 its reverse (7405027), we get a palindrome (79455497).

The spelling of 72050470 in words is "seventy-two million, fifty thousand, four hundred seventy".

Divisors: 1 2 5 10 19 37 38 74 95 185 190 277 370 554 703 1369 1385 1406 2738 2770 3515 5263 6845 7030 10249 10526 13690 20498 26011 26315 51245 52022 52630 102490 130055 194731 260110 379213 389462 758426 973655 1896065 1947310 3792130 7205047 14410094 36025235 72050470