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153369993 = 3713753309
BaseRepresentation
bin10010010010000…
…11110110001001
3101200121000002010
421021003312021
5303230314433
623115130133
73541423560
oct1111036611
9350530063
10153369993
1179634167
1243443949
1325a0ba9a
1416524bd7
15d6e7e63
hex9243d89

153369993 has 16 divisors (see below), whose sum is σ = 235416960. Its totient is φ = 86998656.

The previous prime is 153369943. The next prime is 153370013. The reversal of 153369993 is 399963351.

It is not a de Polignac number, because 153369993 - 26 = 153369929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (153369943) 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, 23778 + ... + 29531.

It is an arithmetic number, because the mean of its divisors is an integer number (14713560).

Almost surely, 2153369993 is an apocalyptic number.

It is an amenable number.

153369993 is a deficient number, since it is larger than the sum of its proper divisors (82046967).

153369993 is a wasteful number, since it uses less digits than its factorization.

153369993 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53456.

The product of its digits is 590490, while the sum is 48.

The square root of 153369993 is about 12384.2639264512. The cubic root of 153369993 is about 535.2789100929.

The spelling of 153369993 in words is "one hundred fifty-three million, three hundred sixty-nine thousand, nine hundred ninety-three".

Divisors: 1 3 7 21 137 411 959 2877 53309 159927 373163 1119489 7303333 21909999 51123331 153369993