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141442040 = 23517208003
BaseRepresentation
bin10000110111000…
…11101111111000
3100212011000000002
420123203233320
5242202121130
622011332132
73335144315
oct1033435770
9325130002
10141442040
1172927553
123b451048
13233c381c
1414adbd0c
15c63db45
hex86e3bf8

141442040 has 32 divisors (see below), whose sum is σ = 336966480. Its totient is φ = 53248512.

The previous prime is 141442031. The next prime is 141442069. The reversal of 141442040 is 40244141.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 103322 + ... + 104681.

Almost surely, 2141442040 is an apocalyptic number.

141442040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

141442040 is an abundant number, since it is smaller than the sum of its proper divisors (195524440).

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

141442040 is a wasteful number, since it uses less digits than its factorization.

141442040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 208031 (or 208027 counting only the distinct ones).

The product of its (nonzero) digits is 512, while the sum is 20.

The square root of 141442040 is about 11892.9407633268. The cubic root of 141442040 is about 521.0261295982.

Adding to 141442040 its reverse (40244141), we get a palindrome (181686181).

The spelling of 141442040 in words is "one hundred forty-one million, four hundred forty-two thousand, forty".

Divisors: 1 2 4 5 8 10 17 20 34 40 68 85 136 170 340 680 208003 416006 832012 1040015 1664024 2080030 3536051 4160060 7072102 8320120 14144204 17680255 28288408 35360510 70721020 141442040