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145368864 = 2533311541
BaseRepresentation
bin10001010101000…
…10011100100000
3101010112111121000
420222202130200
5244203300424
622231432000
73413420634
oct1052423440
9333474530
10145368864
1175069863
1240825600
1324169ca4
1415440dc4
15cb673c9
hex8aa2720

145368864 has 96 divisors (see below), whose sum is σ = 426142080. Its totient is φ = 48211200.

The previous prime is 145368863. The next prime is 145368871. The reversal of 145368864 is 468863541.

It is a tau number, because it is divible by the number of its divisors (96).

It is a super-2 number, since 2×1453688642 = 42264213241300992, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (145368863) 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, 268434 + ... + 268974.

It is an arithmetic number, because the mean of its divisors is an integer number (4438980).

Almost surely, 2145368864 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 145368864, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (213071040).

145368864 is an abundant number, since it is smaller than the sum of its proper divisors (280773216).

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

145368864 is a wasteful number, since it uses less digits than its factorization.

145368864 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 871 (or 857 counting only the distinct ones).

The product of its digits is 552960, while the sum is 45.

The square root of 145368864 is about 12056.9010943940. The cubic root of 145368864 is about 525.8038949555.

The spelling of 145368864 in words is "one hundred forty-five million, three hundred sixty-eight thousand, eight hundred sixty-four".

Divisors: 1 2 3 4 6 8 9 12 16 18 24 27 32 36 48 54 72 96 108 144 216 288 311 432 541 622 864 933 1082 1244 1623 1866 2164 2488 2799 3246 3732 4328 4869 4976 5598 6492 7464 8397 8656 9738 9952 11196 12984 14607 14928 16794 17312 19476 22392 25968 29214 29856 33588 38952 44784 51936 58428 67176 77904 89568 116856 134352 155808 168251 233712 268704 336502 467424 504753 673004 1009506 1346008 1514259 2019012 2692016 3028518 4038024 4542777 5384032 6057036 8076048 9085554 12114072 16152096 18171108 24228144 36342216 48456288 72684432 145368864