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23001444142 = 2177193710169
BaseRepresentation
bin10101011010111111…
…100010111100101110
32012101000021102120121
4111122333202330232
5334101332203032
614322224435154
71442666022625
oct253277427456
965330242517
1023001444142
119833796476
12455b178aba
1322274765a1
141182b866bc
158e94e7a97
hex55afe2f2e

23001444142 has 32 divisors (see below), whose sum is σ = 37089420480. Its totient is φ = 10659317760.

The previous prime is 23001444121. The next prime is 23001444143. The reversal of 23001444142 is 24144410032.

It is a super-2 number, since 2×230014441422 (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23001444143) 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, 2256834 + ... + 2267002.

It is an arithmetic number, because the mean of its divisors is an integer number (1159044390).

Almost surely, 223001444142 is an apocalyptic number.

23001444142 is a deficient number, since it is larger than the sum of its proper divisors (14087976338).

23001444142 is a wasteful number, since it uses less digits than its factorization.

23001444142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11196.

The product of its (nonzero) digits is 3072, while the sum is 25.

Adding to 23001444142 its reverse (24144410032), we get a palindrome (47145854174).

The spelling of 23001444142 in words is "twenty-three billion, one million, four hundred forty-four thousand, one hundred forty-two".

Divisors: 1 2 17 34 71 142 937 1207 1874 2414 10169 15929 20338 31858 66527 133054 172873 345746 721999 1130959 1443998 2261918 9528353 12273983 19056706 24547966 161982001 323964002 676513063 1353026126 11500722071 23001444142