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67940352 = 212321997
BaseRepresentation
bin1000000110010…
…11000000000000
311201211201122100
410003023000000
5114343042402
610424110400
71453324554
oct403130000
9151751570
1067940352
1135394657
121a905400
13110ca1bc
149047864
155e7071c
hex40cb000

67940352 has 156 divisors (see below), whose sum is σ = 208706680. Its totient is φ = 21233664.

The previous prime is 67940339. The next prime is 67940357. The reversal of 67940352 is 25304976.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is not an unprimeable number, because it can be changed into a prime (67940357) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 700368 + ... + 700464.

Almost surely, 267940352 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 67940352, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (104353340).

67940352 is an abundant number, since it is smaller than the sum of its proper divisors (140766328).

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

67940352 is a wasteful number, since it uses less digits than its factorization.

67940352 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 146 (or 121 counting only the distinct ones).

The product of its (nonzero) digits is 45360, while the sum is 36.

The square root of 67940352 is about 8242.5937665276. The cubic root of 67940352 is about 408.0461308855.

The spelling of 67940352 in words is "sixty-seven million, nine hundred forty thousand, three hundred fifty-two".

Divisors: 1 2 3 4 6 8 9 12 16 18 19 24 32 36 38 48 57 64 72 76 96 97 114 128 144 152 171 192 194 228 256 288 291 304 342 384 388 456 512 576 582 608 684 768 776 873 912 1024 1152 1164 1216 1368 1536 1552 1746 1824 1843 2048 2304 2328 2432 2736 3072 3104 3492 3648 3686 4096 4608 4656 4864 5472 5529 6144 6208 6984 7296 7372 9216 9312 9728 10944 11058 12288 12416 13968 14592 14744 16587 18432 18624 19456 21888 22116 24832 27936 29184 29488 33174 36864 37248 38912 43776 44232 49664 55872 58368 58976 66348 74496 77824 87552 88464 99328 111744 116736 117952 132696 148992 175104 176928 198656 223488 233472 235904 265392 297984 350208 353856 397312 446976 471808 530784 595968 700416 707712 893952 943616 1061568 1191936 1415424 1787904 1887232 2123136 2830848 3575808 3774464 4246272 5661696 7548928 8492544 11323392 16985088 22646784 33970176 67940352