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140042472 = 2335835103
BaseRepresentation
bin10000101100011…
…10000011101000
3100202111220011020
420112032003220
5241322324342
621521332440
73320225043
oct1026160350
9322456136
10140042472
1172060a89
123aa97120
132302378b
1414855c5a
15c4640ec
hex858e0e8

140042472 has 16 divisors (see below), whose sum is σ = 350106240. Its totient is φ = 46680816.

The previous prime is 140042471. The next prime is 140042491. The reversal of 140042472 is 274240041.

It is a super-3 number, since 3×1400424723 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 5835103 = 140042472 / (1 + 4 + 0 + 0 + 4 + 2 + 4 + 7 + 2).

It is not an unprimeable number, because it can be changed into a prime (140042471) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2917528 + ... + 2917575.

It is an arithmetic number, because the mean of its divisors is an integer number (21881640).

Almost surely, 2140042472 is an apocalyptic number.

140042472 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

140042472 is an abundant number, since it is smaller than the sum of its proper divisors (210063768).

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

140042472 is a wasteful number, since it uses less digits than its factorization.

140042472 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5835112 (or 5835108 counting only the distinct ones).

The product of its (nonzero) digits is 1792, while the sum is 24.

The square root of 140042472 is about 11833.9541996748. The cubic root of 140042472 is about 519.3019133546.

The spelling of 140042472 in words is "one hundred forty million, forty-two thousand, four hundred seventy-two".

Divisors: 1 2 3 4 6 8 12 24 5835103 11670206 17505309 23340412 35010618 46680824 70021236 140042472