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423988097 = 13191716551
BaseRepresentation
bin11001010001011…
…000101110000001
31002112210211022212
4121101120232001
51332020104342
6110023311505
713335560621
oct3121305601
91075724285
10423988097
111a836a595
12b9bab595
1369ac0040
144044a881
1527351182
hex19458b81

423988097 has 8 divisors (see below), whose sum is σ = 480634560. Its totient is φ = 370774800.

The previous prime is 423988051. The next prime is 423988129. The reversal of 423988097 is 790889324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423988097 - 28 = 423987841 is a prime.

It is a super-4 number, since 4×4239880974 (a number of 36 digits) contains 4444 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423988297) 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, 858029 + ... + 858522.

It is an arithmetic number, because the mean of its divisors is an integer number (60079320).

Almost surely, 2423988097 is an apocalyptic number.

It is an amenable number.

423988097 is a deficient number, since it is larger than the sum of its proper divisors (56646463).

423988097 is a wasteful number, since it uses less digits than its factorization.

423988097 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1716583.

The product of its (nonzero) digits is 870912, while the sum is 50.

The square root of 423988097 is about 20590.9712495550. The cubic root of 423988097 is about 751.2501207361.

The spelling of 423988097 in words is "four hundred twenty-three million, nine hundred eighty-eight thousand, ninety-seven".

Divisors: 1 13 19 247 1716551 22315163 32614469 423988097