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2290228990 = 25789367613
BaseRepresentation
bin1000100010000010…
…0001111011111110
312220121110200112221
42020200201323332
514142244311430
61015131315554
7110516424310
oct21040417376
95817420487
102290228990
11a75857a35
1253ababbba
132a66338aa
1417a2477b0
15d60e157a
hex88821efe

2290228990 has 32 divisors (see below), whose sum is σ = 4764277440. Its totient is φ = 776396544.

The previous prime is 2290228987. The next prime is 2290229003. The reversal of 2290228990 is 998220922.

It is a congruent number.

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, 177577 + ... + 190036.

It is an arithmetic number, because the mean of its divisors is an integer number (148883670).

Almost surely, 22290228990 is an apocalyptic number.

2290228990 is an abundant number, since it is smaller than the sum of its proper divisors (2474048450).

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

2290228990 is a wasteful number, since it uses less digits than its factorization.

2290228990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 367716.

The product of its (nonzero) digits is 93312, while the sum is 43.

The square root of 2290228990 is about 47856.3369889506. The cubic root of 2290228990 is about 1318.1342231495.

The spelling of 2290228990 in words is "two billion, two hundred ninety million, two hundred twenty-eight thousand, nine hundred ninety".

Divisors: 1 2 5 7 10 14 35 70 89 178 445 623 890 1246 3115 6230 367613 735226 1838065 2573291 3676130 5146582 12866455 25732910 32717557 65435114 163587785 229022899 327175570 458045798 1145114495 2290228990