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142430200040 = 2358747407083
BaseRepresentation
bin1000010010100110000…
…0000110000011101000
3111121122012112211111002
42010221200012003220
54313144112400130
6145233113254132
713201360503422
oct2045140060350
9447565484432
10142430200040
115544a153427
122372b704348
131057b1c299b
146c722ad812
153a89260b45
hex21298060e8

142430200040 has 32 divisors (see below), whose sum is σ = 320505374880. Its totient is φ = 56965426752.

The previous prime is 142430200009. The next prime is 142430200049. The reversal of 142430200040 is 40002034241.

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

It is a junction number, because it is equal to n+sod(n) for n = 142430199985 and 142430200021.

It is not an unprimeable number, because it can be changed into a prime (142430200049) 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, 146339 + ... + 553421.

It is an arithmetic number, because the mean of its divisors is an integer number (10015792965).

Almost surely, 2142430200040 is an apocalyptic number.

142430200040 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

142430200040 is an abundant number, since it is smaller than the sum of its proper divisors (178075174840).

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

142430200040 is a wasteful number, since it uses less digits than its factorization.

142430200040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 415841 (or 415837 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 142430200040 its reverse (40002034241), we get a palindrome (182432234281).

The spelling of 142430200040 in words is "one hundred forty-two billion, four hundred thirty million, two hundred thousand, forty".

Divisors: 1 2 4 5 8 10 20 40 8747 17494 34988 43735 69976 87470 174940 349880 407083 814166 1628332 2035415 3256664 4070830 8141660 16283320 3560755001 7121510002 14243020004 17803775005 28486040008 35607550010 71215100020 142430200040