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142590040 = 2353564751
BaseRepresentation
bin10000111111111…
…00000001011000
3100221022022202121
420133330001120
5243000340130
622052111024
73350665255
oct1037740130
9327268677
10142590040
117354100a
123b905474
1323706208
1414d1a42c
15c7b8d7a
hex87fc058

142590040 has 16 divisors (see below), whose sum is σ = 320827680. Its totient is φ = 57036000.

The previous prime is 142590037. The next prime is 142590043. The reversal of 142590040 is 40095241.

It is an interprime number because it is at equal distance from previous prime (142590037) and next prime (142590043).

It is a junction number, because it is equal to n+sod(n) for n = 142589987 and 142590014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (142590043) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 1782336 + ... + 1782415.

It is an arithmetic number, because the mean of its divisors is an integer number (20051730).

Almost surely, 2142590040 is an apocalyptic number.

142590040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142590040 is an abundant number, since it is smaller than the sum of its proper divisors (178237640).

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

142590040 is a wasteful number, since it uses less digits than its factorization.

142590040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3564762 (or 3564758 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 25.

The square root of 142590040 is about 11941.1071513491. The cubic root of 142590040 is about 522.4319516395.

The spelling of 142590040 in words is "one hundred forty-two million, five hundred ninety thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 3564751 7129502 14259004 17823755 28518008 35647510 71295020 142590040