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2102455230 = 235471491103
BaseRepresentation
bin111110101010000…
…1110101110111110
312102112010210101020
41331110032232332
513301212031410
6544342525010
7103046401041
oct17524165676
95375123336
102102455230
11989865807
124a8136766
1327676a565
1415d328c58
15c489ea70
hex7d50ebbe

2102455230 has 32 divisors (see below), whose sum is σ = 5153255424. Its totient is φ = 548725536.

The previous prime is 2102455211. The next prime is 2102455237. The reversal of 2102455230 is 325542012.

It is a self number, because there is not a number n which added to its sum of digits gives 2102455230.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2102455237) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 744142 + ... + 746961.

It is an arithmetic number, because the mean of its divisors is an integer number (161039232).

Almost surely, 22102455230 is an apocalyptic number.

2102455230 is an abundant number, since it is smaller than the sum of its proper divisors (3050800194).

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

2102455230 is a wasteful number, since it uses less digits than its factorization.

2102455230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1491160.

The product of its (nonzero) digits is 2400, while the sum is 24.

The square root of 2102455230 is about 45852.5378795983. The cubic root of 2102455230 is about 1281.0780367107.

Adding to 2102455230 its reverse (325542012), we get a palindrome (2427997242).

The spelling of 2102455230 in words is "two billion, one hundred two million, four hundred fifty-five thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 1491103 2982206 4473309 7455515 8946618 14911030 22366545 44733090 70081841 140163682 210245523 350409205 420491046 700818410 1051227615 2102455230