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1081661414 = 21731813571
BaseRepresentation
bin100000001111000…
…1101011111100110
32210101100002111212
41000132031133212
54203401131124
6255155431422
735542653551
oct10036153746
92711302455
101081661414
1150562a259
122622b5572
1314312c852
14a3927698
1564e6240e
hex4078d7e6

1081661414 has 8 divisors (see below), whose sum is σ = 1717932888. Its totient is φ = 509017120.

The previous prime is 1081661387. The next prime is 1081661423. The reversal of 1081661414 is 4141661801.

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

It is a Curzon number.

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, 15906752 + ... + 15906819.

It is an arithmetic number, because the mean of its divisors is an integer number (214741611).

Almost surely, 21081661414 is an apocalyptic number.

1081661414 is a deficient number, since it is larger than the sum of its proper divisors (636271474).

1081661414 is a wasteful number, since it uses less digits than its factorization.

1081661414 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31813590.

The product of its (nonzero) digits is 4608, while the sum is 32.

The square root of 1081661414 is about 32888.6213453833. The cubic root of 1081661414 is about 1026.5114054909.

The spelling of 1081661414 in words is "one billion, eighty-one million, six hundred sixty-one thousand, four hundred fourteen".

Divisors: 1 2 17 34 31813571 63627142 540830707 1081661414