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76867148144 = 2419318299839
BaseRepresentation
bin100011110010110100…
…0111001100101110000
321100102000002201011202
41013211220321211300
52224410442220034
655151241430332
75360560656503
oct1074550714560
9240360081152
1076867148144
112a665557116
1212a9279b3a8
137330076a17
143a12a6d13a
151eed43647e
hex11e5a39970

76867148144 has 80 divisors (see below), whose sum is σ = 162037248000. Its totient is φ = 35190132480.

The previous prime is 76867148081. The next prime is 76867148161. The reversal of 76867148144 is 44184176867.

It is a self number, because there is not a number n which added to its sum of digits gives 76867148144.

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, 7807577 + ... + 7817415.

It is an arithmetic number, because the mean of its divisors is an integer number (2025465600).

Almost surely, 276867148144 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 76867148144, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (81018624000).

76867148144 is an abundant number, since it is smaller than the sum of its proper divisors (85170099856).

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

76867148144 is a wasteful number, since it uses less digits than its factorization.

76867148144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10726 (or 10720 counting only the distinct ones).

The product of its digits is 7225344, while the sum is 56.

The spelling of 76867148144 in words is "seventy-six billion, eight hundred sixty-seven million, one hundred forty-eight thousand, one hundred forty-four".

Divisors: 1 2 4 8 16 19 31 38 62 76 124 152 248 304 496 589 829 1178 1658 2356 3316 4712 6632 9424 9839 13264 15751 19678 25699 31502 39356 51398 63004 78712 102796 126008 157424 186941 205592 252016 305009 373882 411184 488281 610018 747764 976562 1220036 1495528 1953124 2440072 2991056 3906248 4880144 5795171 7812496 8156531 11590342 16313062 23180684 32626124 46361368 65252248 92722736 130504496 154974089 252852461 309948178 505704922 619896356 1011409844 1239792712 2022819688 2479585424 4045639376 4804196759 9608393518 19216787036 38433574072 76867148144