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226228977 = 33132431153
BaseRepresentation
bin11010111101111…
…11101011110001
3120202200121211000
431132333223301
5430403311402
634240512213
75414625462
oct1536775361
9522617730
10226228977
111067781a7
126391b669
1337b3ba00
142208cd69
1514cdac1c
hexd7bfaf1

226228977 has 48 divisors (see below), whose sum is σ = 371680320. Its totient is φ = 135862272.

The previous prime is 226228973. The next prime is 226228997. The reversal of 226228977 is 779822622.

It is not a de Polignac number, because 226228977 - 22 = 226228973 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (226228973) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 195633 + ... + 196785.

It is an arithmetic number, because the mean of its divisors is an integer number (7743340).

Almost surely, 2226228977 is an apocalyptic number.

226228977 is a gapful number since it is divisible by the number (27) formed by its first and last digit.

It is an amenable number.

226228977 is a deficient number, since it is larger than the sum of its proper divisors (145451343).

226228977 is a wasteful number, since it uses less digits than its factorization.

226228977 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1231 (or 1212 counting only the distinct ones).

The product of its digits is 338688, while the sum is 45.

The square root of 226228977 is about 15040.9101120910. The cubic root of 226228977 is about 609.3255799922.

The spelling of 226228977 in words is "two hundred twenty-six million, two hundred twenty-eight thousand, nine hundred seventy-seven".

Divisors: 1 3 9 13 27 39 43 117 129 169 351 387 507 559 1153 1161 1521 1677 3459 4563 5031 7267 10377 14989 15093 21801 31131 44967 49579 65403 134901 148737 194857 196209 404703 446211 584571 644527 1338633 1753713 1933581 5261139 5800743 8378851 17402229 25136553 75409659 226228977