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142304064 = 2637113937
BaseRepresentation
bin10000111101101…
…10001101000000
3100220202210110220
420132312031000
5242412212224
622042023040
73345364440
oct1036661500
9326683426
10142304064
1173366171
123b7a7a80
1323635cb6
1414c84120
15c75e279
hex87b6340

142304064 has 112 divisors (see below), whose sum is σ = 434571648. Its totient is φ = 40255488.

The previous prime is 142304039. The next prime is 142304069. The reversal of 142304064 is 460403241.

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142304069) 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, 151404 + ... + 152340.

It is an arithmetic number, because the mean of its divisors is an integer number (3880104).

Almost surely, 2142304064 is an apocalyptic number.

142304064 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 142304064, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (217285824).

142304064 is an abundant number, since it is smaller than the sum of its proper divisors (292267584).

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

142304064 is a wasteful number, since it uses less digits than its factorization.

142304064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1072 (or 1062 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

The square root of 142304064 is about 11929.1267073495. The cubic root of 142304064 is about 522.0824578712.

The spelling of 142304064 in words is "one hundred forty-two million, three hundred four thousand, sixty-four".

Divisors: 1 2 3 4 6 7 8 12 14 16 21 24 28 32 42 48 56 64 84 96 112 113 168 192 224 226 336 339 448 452 672 678 791 904 937 1344 1356 1582 1808 1874 2373 2712 2811 3164 3616 3748 4746 5424 5622 6328 6559 7232 7496 9492 10848 11244 12656 13118 14992 18984 19677 21696 22488 25312 26236 29984 37968 39354 44976 50624 52472 59968 75936 78708 89952 104944 105881 151872 157416 179904 209888 211762 314832 317643 419776 423524 629664 635286 741167 847048 1259328 1270572 1482334 1694096 2223501 2541144 2964668 3388192 4447002 5082288 5929336 6776384 8894004 10164576 11858672 17788008 20329152 23717344 35576016 47434688 71152032 142304064