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161360002840 = 23535911236769
BaseRepresentation
bin1001011001000111001…
…1100011111100011000
3120102111110022110011111
42112101303203330120
510120431130042330
6202043332510104
714441436252031
oct2262163437430
9512443273144
10161360002840
1162483573453
122733317b334
13122a6c52c2a
147b4a3b3a88
1542e608132a
hex2591ce3f18

161360002840 has 32 divisors (see below), whose sum is σ = 364071348000. Its totient is φ = 64364207104.

The previous prime is 161360002829. The next prime is 161360002871. The reversal of 161360002840 is 48200063161.

It is a happy number.

161360002840 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5604025 + ... + 5632744.

It is an arithmetic number, because the mean of its divisors is an integer number (11377229625).

Almost surely, 2161360002840 is an apocalyptic number.

161360002840 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

161360002840 is an abundant number, since it is smaller than the sum of its proper divisors (202711345160).

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

161360002840 is a wasteful number, since it uses less digits than its factorization.

161360002840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11237139 (or 11237135 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

The spelling of 161360002840 in words is "one hundred sixty-one billion, three hundred sixty million, two thousand, eight hundred forty".

Divisors: 1 2 4 5 8 10 20 40 359 718 1436 1795 2872 3590 7180 14360 11236769 22473538 44947076 56183845 89894152 112367690 224735380 449470760 4034000071 8068000142 16136000284 20170000355 32272000568 40340000710 80680001420 161360002840