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203120222030 = 251118077102149
BaseRepresentation
bin1011110100101011101…
…0001001111101001110
3201102021210112101110022
42331022322021331032
511311442234101110
6233151231142142
720450336254145
oct2751272117516
9642253471408
10203120222030
11791630851a0
1233448674952
13162008a76bb
149b8c66075c
15543c364755
hex2f4ae89f4e

203120222030 has 32 divisors (see below), whose sum is σ = 398880223200. Its totient is φ = 73857089920.

The previous prime is 203120222027. The next prime is 203120222033. The reversal of 203120222030 is 30222021302.

It is an interprime number because it is at equal distance from previous prime (203120222027) and next prime (203120222033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203120222033) 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, 1937396 + ... + 2039544.

It is an arithmetic number, because the mean of its divisors is an integer number (12465006975).

Almost surely, 2203120222030 is an apocalyptic number.

203120222030 is a deficient number, since it is larger than the sum of its proper divisors (195760001170).

203120222030 is a wasteful number, since it uses less digits than its factorization.

203120222030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 120244.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 203120222030 its reverse (30222021302), we get a palindrome (233342243332).

The spelling of 203120222030 in words is "two hundred three billion, one hundred twenty million, two hundred twenty-two thousand, thirty".

Divisors: 1 2 5 10 11 22 55 110 18077 36154 90385 102149 180770 198847 204298 397694 510745 994235 1021490 1123639 1988470 2247278 5618195 11236390 1846547473 3693094946 9232737365 18465474730 20312022203 40624044406 101560111015 203120222030