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168066012730 = 25711719303571
BaseRepresentation
bin1001110010000110000…
…0111101011000111010
3121001210210212001100011
42130201200331120322
510223144344401410
6205113005532134
715066555352210
oct2344140753072
9531723761304
10168066012730
1165304978990
12286a4b7404a
1312b05383715
1481c4c82cb0
154589b7718a
hex272183d63a

168066012730 has 64 divisors (see below), whose sum is σ = 377692139520. Its totient is φ = 52311182400.

The previous prime is 168066012713. The next prime is 168066012791. The reversal of 168066012730 is 37210660861.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 401845 + ... + 705415.

It is an arithmetic number, because the mean of its divisors is an integer number (5901439680).

Almost surely, 2168066012730 is an apocalyptic number.

168066012730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

168066012730 is an abundant number, since it is smaller than the sum of its proper divisors (209626126790).

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

168066012730 is a wasteful number, since it uses less digits than its factorization.

168066012730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 304315.

The product of its (nonzero) digits is 72576, while the sum is 40.

The spelling of 168066012730 in words is "one hundred sixty-eight billion, sixty-six million, twelve thousand, seven hundred thirty".

Divisors: 1 2 5 7 10 11 14 22 35 55 70 77 110 154 385 719 770 1438 3595 5033 7190 7909 10066 15818 25165 39545 50330 55363 79090 110726 276815 303571 553630 607142 1517855 2124997 3035710 3339281 4249994 6678562 10624985 16696405 21249970 23374967 33392810 46749934 116874835 218267549 233749670 436535098 1091337745 1527872843 2182675490 2400943039 3055745686 4801886078 7639364215 12004715195 15278728430 16806601273 24009430390 33613202546 84033006365 168066012730