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228077623 = 734097639
BaseRepresentation
bin11011001100000…
…11000000110111
3120220011112200101
431212003000313
5431341440443
634344254531
75436425224
oct1546030067
9526145611
10228077623
11107820104
1264471447
1338338297
142241094b
151505384d
hexd983037

228077623 has 8 divisors (see below), whose sum is σ = 231797600. Its totient is φ = 224373888.

The previous prime is 228077617. The next prime is 228077639. The reversal of 228077623 is 326770822.

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 228077623 - 213 = 228069431 is a prime.

It is a super-2 number, since 2×2280776232 = 104038804226660258, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228077693) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26038 + ... + 33676.

It is an arithmetic number, because the mean of its divisors is an integer number (28974700).

Almost surely, 2228077623 is an apocalyptic number.

228077623 is a deficient number, since it is larger than the sum of its proper divisors (3719977).

228077623 is an equidigital number, since it uses as much as digits as its factorization.

228077623 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8121.

The product of its (nonzero) digits is 56448, while the sum is 37.

The square root of 228077623 is about 15102.2390061871. The cubic root of 228077623 is about 610.9807951905.

The spelling of 228077623 in words is "two hundred twenty-eight million, seventy-seven thousand, six hundred twenty-three".

Divisors: 1 73 409 7639 29857 557647 3124351 228077623