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161683840714 = 2117349265487
BaseRepresentation
bin1001011010010100011…
…0111001111011001010
3120110100000200010012211
42112211012321323022
510122112030400324
6202135421455334
714452450653544
oct2264506717312
9513300603184
10161683840714
116262a349660
122740371154a
1312329078c86
147b7b3d0694
1543146ed294
hex25a51b9eca

161683840714 has 8 divisors (see below), whose sum is σ = 264573557568. Its totient is φ = 73492654860.

The previous prime is 161683840711. The next prime is 161683840741. The reversal of 161683840714 is 417048386161.

It is a happy number.

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

It is a super-3 number, since 3×1616838407143 (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (161683840711) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3674632722 + ... + 3674632765.

It is an arithmetic number, because the mean of its divisors is an integer number (33071694696).

Almost surely, 2161683840714 is an apocalyptic number.

161683840714 is a deficient number, since it is larger than the sum of its proper divisors (102889716854).

161683840714 is a wasteful number, since it uses less digits than its factorization.

161683840714 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7349265500.

The product of its (nonzero) digits is 774144, while the sum is 49.

The spelling of 161683840714 in words is "one hundred sixty-one billion, six hundred eighty-three million, eight hundred forty thousand, seven hundred fourteen".

Divisors: 1 2 11 22 7349265487 14698530974 80841920357 161683840714