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22207317740 = 22597109105019
BaseRepresentation
bin10100101011101010…
…001100011011101100
32010022122222121221122
4110223222030123230
5330440033131430
614111335520112
71414214041406
oct245352143354
963278877848
1022207317740
1194664a7563
124379229038
13212ba9bcca
141109509b76
1589e930ee5
hex52ba8c6ec

22207317740 has 48 divisors (see below), whose sum is σ = 47548855200. Its totient is φ = 8710612992.

The previous prime is 22207317739. The next prime is 22207317757. The reversal of 22207317740 is 4771370222.

It is a super-2 number, since 2×222073177402 (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 22207317740.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158951 + ... + 263969.

It is an arithmetic number, because the mean of its divisors is an integer number (990601150).

Almost surely, 222207317740 is an apocalyptic number.

22207317740 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

22207317740 is an abundant number, since it is smaller than the sum of its proper divisors (25341537460).

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

22207317740 is a wasteful number, since it uses less digits than its factorization.

22207317740 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 105234 (or 105232 counting only the distinct ones).

The product of its (nonzero) digits is 32928, while the sum is 35.

Adding to 22207317740 its reverse (4771370222), we get a palindrome (26978687962).

The spelling of 22207317740 in words is "twenty-two billion, two hundred seven million, three hundred seventeen thousand, seven hundred forty".

Divisors: 1 2 4 5 10 20 97 109 194 218 388 436 485 545 970 1090 1940 2180 10573 21146 42292 52865 105019 105730 210038 211460 420076 525095 1050190 2100380 10186843 11447071 20373686 22894142 40747372 45788284 50934215 57235355 101868430 114470710 203736860 228941420 1110365887 2220731774 4441463548 5551829435 11103658870 22207317740