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153020023 = 1311770771
BaseRepresentation
bin10010001111011…
…10011001110111
3101122221020000021
421013232121313
5303133120043
623103430011
73535435342
oct1107563167
9348836007
10153020023
1179415232
12432b5307
13259186c0
1416473459
15d6793ed
hex91ee677

153020023 has 4 divisors (see below), whose sum is σ = 164790808. Its totient is φ = 141249240.

The previous prime is 153020017. The next prime is 153020041. The reversal of 153020023 is 320020351.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 320020351 = 745717193.

It is a cyclic number.

It is not a de Polignac number, because 153020023 - 25 = 153019991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 153019979 and 153020006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153020083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5885373 + ... + 5885398.

It is an arithmetic number, because the mean of its divisors is an integer number (41197702).

Almost surely, 2153020023 is an apocalyptic number.

153020023 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

153020023 is a deficient number, since it is larger than the sum of its proper divisors (11770785).

153020023 is a wasteful number, since it uses less digits than its factorization.

153020023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11770784.

The product of its (nonzero) digits is 180, while the sum is 16.

The square root of 153020023 is about 12370.1262321773. The cubic root of 153020023 is about 534.8714548360.

Adding to 153020023 its reverse (320020351), we get a palindrome (473040374).

The spelling of 153020023 in words is "one hundred fifty-three million, twenty thousand, twenty-three".

Divisors: 1 13 11770771 153020023