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16031730142 = 219940280729
BaseRepresentation
bin11101110111001000…
…01100100111011110
31112101021112021101001
432323210030213132
5230313110331032
611210451340514
71105165313011
oct167344144736
945337467331
1016031730142
11688754815a
123134bb173a
13168651586c
14ac1271378
1563c6b23e7
hex3bb90c9de

16031730142 has 8 divisors (see below), whose sum is σ = 24168438000. Its totient is φ = 7975584144.

The previous prime is 16031730131. The next prime is 16031730151. The reversal of 16031730142 is 24103713061.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a super-2 number, since 2×160317301422 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 16031730142.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 20139967 + ... + 20140762.

It is an arithmetic number, because the mean of its divisors is an integer number (3021054750).

Almost surely, 216031730142 is an apocalyptic number.

16031730142 is a deficient number, since it is larger than the sum of its proper divisors (8136707858).

16031730142 is a wasteful number, since it uses less digits than its factorization.

16031730142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40280930.

The product of its (nonzero) digits is 3024, while the sum is 28.

The spelling of 16031730142 in words is "sixteen billion, thirty-one million, seven hundred thirty thousand, one hundred forty-two".

Divisors: 1 2 199 398 40280729 80561458 8015865071 16031730142