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2749060164840 = 23351123359315073
BaseRepresentation
bin101000000000010000110…
…000010010110011101000
3100201210210201200211212020
4220000100300102303220
5330020033400233330
65502522323544440
7402420162565113
oct50002060226350
910653721624766
102749060164840
1196a962882460
1238495282b120
1316c309b3ab42
14970ab75957a
154b799180210
hex28010c12ce8

2749060164840 has 256 divisors, whose sum is σ = 9051375041280. Its totient is φ = 662415605760.

The previous prime is 2749060164787. The next prime is 2749060164883. The reversal of 2749060164840 is 484610609472.

It is a happy number.

It is a Cunningham number, because it is equal to 16580292-1.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 182375544 + ... + 182390616.

It is an arithmetic number, because the mean of its divisors is an integer number (35356933755).

Almost surely, 22749060164840 is an apocalyptic number.

2749060164840 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2749060164840, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4525687520640).

2749060164840 is an abundant number, since it is smaller than the sum of its proper divisors (6302314876440).

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

2749060164840 is a wasteful number, since it uses less digits than its factorization.

2749060164840 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15924 (or 15920 counting only the distinct ones).

The product of its (nonzero) digits is 2322432, while the sum is 51.

The spelling of 2749060164840 in words is "two trillion, seven hundred forty-nine billion, sixty million, one hundred sixty-four thousand, eight hundred forty".