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1310061740 = 225137963781
BaseRepresentation
bin100111000010101…
…1111010010101100
310101022010000212012
41032011133102230
510140333433430
6333555100352
744315224661
oct11605372254
93338100765
101310061740
1161254a859
123068a16b8
1317b54b980
14c5dbda68
157a02b695
hex4e15f4ac

1310061740 has 48 divisors (see below), whose sum is σ = 3000305280. Its totient is φ = 477584640.

The previous prime is 1310061737. The next prime is 1310061751. The reversal of 1310061740 is 471600131.

It is a super-2 number, since 2×13100617402 = 3432523525223655200, which contains 22 as substring.

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, 11351 + ... + 52430.

It is an arithmetic number, because the mean of its divisors is an integer number (62506360).

Almost surely, 21310061740 is an apocalyptic number.

1310061740 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1310061740 is an abundant number, since it is smaller than the sum of its proper divisors (1690243540).

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

1310061740 is a wasteful number, since it uses less digits than its factorization.

1310061740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 63882 (or 63880 counting only the distinct ones).

The product of its (nonzero) digits is 504, while the sum is 23.

The square root of 1310061740 is about 36194.7750372896. The cubic root of 1310061740 is about 1094.2013706435.

Adding to 1310061740 its reverse (471600131), we get a palindrome (1781661871).

The spelling of 1310061740 in words is "one billion, three hundred ten million, sixty-one thousand, seven hundred forty".

Divisors: 1 2 4 5 10 13 20 26 52 65 79 130 158 260 316 395 790 1027 1580 2054 4108 5135 10270 20540 63781 127562 255124 318905 637810 829153 1275620 1658306 3316612 4145765 5038699 8291530 10077398 16583060 20154796 25193495 50386990 65503087 100773980 131006174 262012348 327515435 655030870 1310061740