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16075720128 = 2631349912907
BaseRepresentation
bin11101111100011000…
…00000010111000000
31112111100022012021210
432332030000113000
5230410341021003
611215102250120
71106241236466
oct167614002700
945440265253
1016075720128
1168aa363516
123147886940
131692678540
14ac7042836
156414a1503
hex3be3005c0

16075720128 has 112 divisors (see below), whose sum is σ = 45900848000. Its totient is φ = 4936080384.

The previous prime is 16075720123. The next prime is 16075720163. The reversal of 16075720128 is 82102757061.

It is a Harshad number since it is a multiple of its sum of digits (39).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (16075720121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1239051 + ... + 1251957.

It is an arithmetic number, because the mean of its divisors is an integer number (409829000).

Almost surely, 216075720128 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 16075720128, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22950424000).

16075720128 is an abundant number, since it is smaller than the sum of its proper divisors (29825127872).

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

16075720128 is a wasteful number, since it uses less digits than its factorization.

16075720128 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13434 (or 13424 counting only the distinct ones).

The product of its (nonzero) digits is 47040, while the sum is 39.

The spelling of 16075720128 in words is "sixteen billion, seventy-five million, seven hundred twenty thousand, one hundred twenty-eight".

Divisors: 1 2 3 4 6 8 12 13 16 24 26 32 39 48 52 64 78 96 104 156 192 208 312 416 499 624 832 998 1248 1497 1996 2496 2994 3992 5988 6487 7984 11976 12907 12974 15968 19461 23952 25814 25948 31936 38721 38922 47904 51628 51896 77442 77844 95808 103256 103792 154884 155688 167791 206512 207584 309768 311376 335582 413024 415168 503373 619536 622752 671164 826048 1006746 1239072 1245504 1342328 2013492 2478144 2684656 4026984 5369312 6440593 8053968 10738624 12881186 16107936 19321779 25762372 32215872 38643558 51524744 77287116 83727709 103049488 154574232 167455418 206098976 251183127 309148464 334910836 412197952 502366254 618296928 669821672 1004732508 1236593856 1339643344 2009465016 2679286688 4018930032 5358573376 8037860064 16075720128