Search a number
-
+
228503048501 = 71321911114601
BaseRepresentation
bin1101010011001111010…
…1111101000100110101
3210211210202210120110102
43110303311331010311
512220433240023001
6252550045203445
722336342602530
oct3246365750465
9724722716412
10228503048501
11889a9017432
1238351260585
131871751b750
14b0b97bba17
155e25956e6b
hex3533d7d135

228503048501 has 16 divisors (see below), whose sum is σ = 281249810688. Its totient is φ = 180783792000.

The previous prime is 228503048471. The next prime is 228503048533. The reversal of 228503048501 is 105840305822.

It is not a de Polignac number, because 228503048501 - 218 = 228502786357 is a prime.

It is a Smith number, since the sum of its digits (38) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (228503048101) 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, 1936601 + ... + 2051201.

It is an arithmetic number, because the mean of its divisors is an integer number (17578113168).

Almost surely, 2228503048501 is an apocalyptic number.

It is an amenable number.

228503048501 is a deficient number, since it is larger than the sum of its proper divisors (52746762187).

228503048501 is a wasteful number, since it uses less digits than its factorization.

228503048501 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136532.

The product of its (nonzero) digits is 76800, while the sum is 38.

The spelling of 228503048501 in words is "two hundred twenty-eight billion, five hundred three million, forty-eight thousand, five hundred one".

Divisors: 1 7 13 91 21911 114601 153377 284843 802207 1489813 1993901 10428691 2511022511 17577157577 32643292643 228503048501