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11880998 = 231712699
BaseRepresentation
bin101101010100…
…101000100110
3211100121122222
4231110220212
511020142443
61102352342
7202662323
oct55245046
924317588
1011880998
116785408
123b8b6b2
1325cca9c
141813b4a
15109a468
hexb54a26

11880998 has 16 divisors (see below), whose sum is σ = 18662400. Its totient is φ = 5665800.

The previous prime is 11880997. The next prime is 11881013. The reversal of 11880998 is 89908811.

It is a happy number.

It is a super-2 number, since 2×118809982 = 282316226952008, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11880997) 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 7 ways as a sum of consecutive naturals, for example, 3053 + ... + 5751.

It is an arithmetic number, because the mean of its divisors is an integer number (1166400).

Almost surely, 211880998 is an apocalyptic number.

11880998 is a deficient number, since it is larger than the sum of its proper divisors (6781402).

11880998 is a wasteful number, since it uses less digits than its factorization.

11880998 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2803.

The product of its (nonzero) digits is 41472, while the sum is 44.

The square root of 11880998 is about 3446.8823594663. The cubic root of 11880998 is about 228.1835369391.

The spelling of 11880998 in words is "eleven million, eight hundred eighty thousand, nine hundred ninety-eight".

Divisors: 1 2 31 62 71 142 2201 2699 4402 5398 83669 167338 191629 383258 5940499 11880998