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228061002 = 23132923859
BaseRepresentation
bin11011001011111…
…10111101001010
3120220010200212210
431211332331022
5431340423002
634344045550
75436325611
oct1545767512
9526120783
10228061002
11107809674
12644638b6
1338330850
1422408878
151504d96c
hexd97ef4a

228061002 has 16 divisors (see below), whose sum is σ = 491208480. Its totient is φ = 70172592.

The previous prime is 228060997. The next prime is 228061003. The reversal of 228061002 is 200160822.

It is a self number, because there is not a number n which added to its sum of digits gives 228061002.

It is not an unprimeable number, because it can be changed into a prime (228061003) 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, 1461852 + ... + 1462007.

It is an arithmetic number, because the mean of its divisors is an integer number (30700530).

Almost surely, 2228061002 is an apocalyptic number.

228061002 is an abundant number, since it is smaller than the sum of its proper divisors (263147478).

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

228061002 is a wasteful number, since it uses less digits than its factorization.

228061002 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923877.

The product of its (nonzero) digits is 384, while the sum is 21.

The square root of 228061002 is about 15101.6887135181. The cubic root of 228061002 is about 610.9659532281.

The spelling of 228061002 in words is "two hundred twenty-eight million, sixty-one thousand, two".

Divisors: 1 2 3 6 13 26 39 78 2923859 5847718 8771577 17543154 38010167 76020334 114030501 228061002