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142871652 = 2232721137199
BaseRepresentation
bin10001000010000…
…00110001100100
3100221211122001200
420201000301210
5243033343102
622102122500
73353250300
oct1041006144
9327748050
10142871652
1173713650
123ba20430
13237a4451
1414d90d00
15c82251c
hex8840c64

142871652 has 216 divisors, whose sum is σ = 473054400. Its totient is φ = 35925120.

The previous prime is 142871647. The next prime is 142871657. The reversal of 142871652 is 256178241.

142871652 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (142871647) and next prime (142871657).

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 (142871657) by changing a digit.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 717849 + ... + 718047.

Almost surely, 2142871652 is an apocalyptic number.

142871652 is a gapful number since it is divisible by the number (12) 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 142871652, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (236527200).

142871652 is an abundant number, since it is smaller than the sum of its proper divisors (330182748).

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

142871652 is a wasteful number, since it uses less digits than its factorization.

142871652 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 271 (or 259 counting only the distinct ones).

The product of its digits is 26880, while the sum is 36.

The square root of 142871652 is about 11952.8930389258. The cubic root of 142871652 is about 522.7756557720.

The spelling of 142871652 in words is "one hundred forty-two million, eight hundred seventy-one thousand, six hundred fifty-two".