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93142380 = 22351552373
BaseRepresentation
bin1011000110100…
…11110101101100
320111021010022210
411203103311230
5142321024010
613124210420
72210461062
oct543236554
9214233283
1093142380
1148638281
1227239a10
13163b2346
14c528032
15829cb20
hex58d3d6c

93142380 has 24 divisors (see below), whose sum is σ = 260798832. Its totient is φ = 24837952.

The previous prime is 93142367. The next prime is 93142381. The reversal of 93142380 is 8324139.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is not an unprimeable number, because it can be changed into a prime (93142381) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 776127 + ... + 776246.

It is an arithmetic number, because the mean of its divisors is an integer number (10866618).

Almost surely, 293142380 is an apocalyptic number.

It is an amenable number.

93142380 is an abundant number, since it is smaller than the sum of its proper divisors (167656452).

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

93142380 is a wasteful number, since it uses less digits than its factorization.

93142380 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1552385 (or 1552383 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 30.

The square root of 93142380 is about 9651.0299968449. The cubic root of 93142380 is about 453.2965812670.

The spelling of 93142380 in words is "ninety-three million, one hundred forty-two thousand, three hundred eighty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 1552373 3104746 4657119 6209492 7761865 9314238 15523730 18628476 23285595 31047460 46571190 93142380