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228101372 = 2257025343
BaseRepresentation
bin11011001100010…
…00110011111100
3120220012202020222
431212020303330
5431343220442
634345000512
75436554402
oct1546106374
9526182228
10228101372
11107836a34
1264483138
1338346035
1422419472
151505a8d2
hexd988cfc

228101372 has 6 divisors (see below), whose sum is σ = 399177408. Its totient is φ = 114050684.

The previous prime is 228101353. The next prime is 228101407. The reversal of 228101372 is 273101822.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 28512668 + ... + 28512675.

It is an arithmetic number, because the mean of its divisors is an integer number (66529568).

Almost surely, 2228101372 is an apocalyptic number.

It is an amenable number.

228101372 is a deficient number, since it is larger than the sum of its proper divisors (171076036).

228101372 is a wasteful number, since it uses less digits than its factorization.

228101372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57025347 (or 57025345 counting only the distinct ones).

The product of its (nonzero) digits is 1344, while the sum is 26.

The square root of 228101372 is about 15103.0252598610. The cubic root of 228101372 is about 611.0020009524.

The spelling of 228101372 in words is "two hundred twenty-eight million, one hundred one thousand, three hundred seventy-two".

Divisors: 1 2 4 57025343 114050686 228101372