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226468540 = 22529390463
BaseRepresentation
bin11010111111110…
…10001010111100
3120210010210102201
431133322022330
5430433443130
634250001244
75416644064
oct1537721274
9523123381
10226468540
11106921191
1263a16224
1337bc3a6c
14221123a4
1514d36bca
hexd7fa2bc

226468540 has 24 divisors (see below), whose sum is σ = 491984640. Its totient is φ = 87463488.

The previous prime is 226468531. The next prime is 226468549. The reversal of 226468540 is 45864622.

It is an interprime number because it is at equal distance from previous prime (226468531) and next prime (226468549).

It is a self number, because there is not a number n which added to its sum of digits gives 226468540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226468549) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 194652 + ... + 195811.

It is an arithmetic number, because the mean of its divisors is an integer number (20499360).

Almost surely, 2226468540 is an apocalyptic number.

226468540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

226468540 is an abundant number, since it is smaller than the sum of its proper divisors (265516100).

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

226468540 is a wasteful number, since it uses less digits than its factorization.

226468540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 390501 (or 390499 counting only the distinct ones).

The product of its (nonzero) digits is 92160, while the sum is 37.

The square root of 226468540 is about 15048.8717185043. The cubic root of 226468540 is about 609.5405839393.

The spelling of 226468540 in words is "two hundred twenty-six million, four hundred sixty-eight thousand, five hundred forty".

Divisors: 1 2 4 5 10 20 29 58 116 145 290 580 390463 780926 1561852 1952315 3904630 7809260 11323427 22646854 45293708 56617135 113234270 226468540