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72424342460 = 22525733142569
BaseRepresentation
bin100001101110011010…
…0111100001110111100
320220221101011210112002
41003130310330032330
52141311112424320
653134333001432
75142512516321
oct1033464741674
9226841153462
1072424342460
1128795720488
1212052923278
136aa27a7112
1437109b0b48
151d3d394675
hex10dcd3c3bc

72424342460 has 48 divisors (see below), whose sum is σ = 153147788640. Its totient is φ = 28769157120.

The previous prime is 72424342439. The next prime is 72424342493. The reversal of 72424342460 is 6424342427.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1680056 + ... + 1722624.

It is an arithmetic number, because the mean of its divisors is an integer number (3190578930).

Almost surely, 272424342460 is an apocalyptic number.

It is an amenable number.

72424342460 is an abundant number, since it is smaller than the sum of its proper divisors (80723446180).

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

72424342460 is a wasteful number, since it uses less digits than its factorization.

72424342460 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43166 (or 43164 counting only the distinct ones).

The product of its (nonzero) digits is 258048, while the sum is 38.

Adding to 72424342460 its reverse (6424342427), we get a palindrome (78848684887).

The spelling of 72424342460 in words is "seventy-two billion, four hundred twenty-four million, three hundred forty-two thousand, four hundred sixty".

Divisors: 1 2 4 5 10 20 257 331 514 662 1028 1285 1324 1655 2570 3310 5140 6620 42569 85067 85138 170134 170276 212845 340268 425335 425690 850670 851380 1701340 10940233 14090339 21880466 28180678 43760932 54701165 56361356 70451695 109402330 140903390 218804660 281806780 3621217123 7242434246 14484868492 18106085615 36212171230 72424342460