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1081660234 = 21949157973
BaseRepresentation
bin100000001111000…
…1101001101001010
32210101100000220011
41000132031031022
54203401111414
6255155422134
735542650244
oct10036151512
92711300804
101081660234
11505629386
122622b494a
1314312c155
14a3927094
1564e61dc4
hex4078d34a

1081660234 has 16 divisors (see below), whose sum is σ = 1711392480. Its totient is φ = 511313040.

The previous prime is 1081660193. The next prime is 1081660249. The reversal of 1081660234 is 4320661801.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 1081660196 and 1081660205.

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 7 ways as a sum of consecutive naturals, for example, 10329 + ... + 47644.

It is an arithmetic number, because the mean of its divisors is an integer number (106962030).

Almost surely, 21081660234 is an apocalyptic number.

1081660234 is a deficient number, since it is larger than the sum of its proper divisors (629732246).

1081660234 is a wasteful number, since it uses less digits than its factorization.

1081660234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58485.

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

The square root of 1081660234 is about 32888.6034060433. The cubic root of 1081660234 is about 1026.5110322121.

The spelling of 1081660234 in words is "one billion, eighty-one million, six hundred sixty thousand, two hundred thirty-four".

Divisors: 1 2 19 38 491 982 9329 18658 57973 115946 1101487 2202974 28464743 56929486 540830117 1081660234