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142604250 = 23531071777
BaseRepresentation
bin10000111111111…
…11011111011010
3100221100001020220
420133333133122
5243001314000
622052300510
73351054555
oct1037773732
9327301226
10142604250
1173550758
123b911736
132370c819
1414d2169c
15c7bd1a0
hex87ff7da

142604250 has 64 divisors (see below), whose sum is σ = 359468928. Its totient is φ = 37651200.

The previous prime is 142604237. The next prime is 142604261. The reversal of 142604250 is 52406241.

It is a self number, because there is not a number n which added to its sum of digits gives 142604250.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79362 + ... + 81138.

It is an arithmetic number, because the mean of its divisors is an integer number (5616702).

Almost surely, 2142604250 is an apocalyptic number.

142604250 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 142604250, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (179734464).

142604250 is an abundant number, since it is smaller than the sum of its proper divisors (216864678).

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

142604250 is a wasteful number, since it uses less digits than its factorization.

142604250 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1904 (or 1894 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 24.

The square root of 142604250 is about 11941.7021399799. The cubic root of 142604250 is about 522.4493056133.

The spelling of 142604250 in words is "one hundred forty-two million, six hundred four thousand, two hundred fifty".

Divisors: 1 2 3 5 6 10 15 25 30 50 75 107 125 150 214 250 321 375 535 642 750 1070 1605 1777 2675 3210 3554 5331 5350 8025 8885 10662 13375 16050 17770 26655 26750 40125 44425 53310 80250 88850 133275 190139 222125 266550 380278 444250 570417 666375 950695 1140834 1332750 1901390 2852085 4753475 5704170 9506950 14260425 23767375 28520850 47534750 71302125 142604250