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146042720 = 2552274021
BaseRepresentation
bin10001011010001…
…10111101100000
3101011210201221122
420231012331200
5244341331340
622254111412
73422225345
oct1055067540
9334721848
10146042720
117548a06a
1240aab568
1324344915
14155787cc
15cc4bdb5
hex8b46f60

146042720 has 48 divisors (see below), whose sum is σ = 346632048. Its totient is φ = 58145280.

The previous prime is 146042693. The next prime is 146042747. The reversal of 146042720 is 27240641.

It is an interprime number because it is at equal distance from previous prime (146042693) and next prime (146042747).

It is a self number, because there is not a number n which added to its sum of digits gives 146042720.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34310 + ... + 38330.

It is an arithmetic number, because the mean of its divisors is an integer number (7221501).

Almost surely, 2146042720 is an apocalyptic number.

146042720 is a gapful number since it is divisible by the number (10) 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 146042720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (173316024).

146042720 is an abundant number, since it is smaller than the sum of its proper divisors (200589328).

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

146042720 is a wasteful number, since it uses less digits than its factorization.

146042720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4263 (or 4255 counting only the distinct ones).

The product of its (nonzero) digits is 2688, while the sum is 26.

The square root of 146042720 is about 12084.8136104782. The cubic root of 146042720 is about 526.6150958067.

The spelling of 146042720 in words is "one hundred forty-six million, forty-two thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 80 160 227 454 908 1135 1816 2270 3632 4021 4540 7264 8042 9080 16084 18160 20105 32168 36320 40210 64336 80420 128672 160840 321680 643360 912767 1825534 3651068 4563835 7302136 9127670 14604272 18255340 29208544 36510680 73021360 146042720