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488228238 = 232311575573
BaseRepresentation
bin11101000110011…
…100010110001110
31021000200120020100
4131012130112032
51444441300423
6120240231530
715045604641
oct3506342616
91230616210
10488228238
11230657113
1211760b5a6
137a1c2c64
1448bada58
152cce0343
hex1d19c58e

488228238 has 48 divisors (see below), whose sum is σ = 1099103616. Its totient is φ = 156461760.

The previous prime is 488228231. The next prime is 488228239. The reversal of 488228238 is 832822884.

It is a happy number.

It is a Smith number, since the sum of its digits (45) coincides with the sum of the digits of its prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 488228193 and 488228202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488228231) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 84820 + ... + 90392.

It is an arithmetic number, because the mean of its divisors is an integer number (22897992).

Almost surely, 2488228238 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 488228238, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (549551808).

488228238 is an abundant number, since it is smaller than the sum of its proper divisors (610875378).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

488228238 is a wasteful number, since it uses less digits than its factorization.

488228238 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5769 (or 5766 counting only the distinct ones).

The product of its digits is 393216, while the sum is 45.

The square root of 488228238 is about 22095.8873548903. The cubic root of 488228238 is about 787.4221576875.

The spelling of 488228238 in words is "four hundred eighty-eight million, two hundred twenty-eight thousand, two hundred thirty-eight".

Divisors: 1 2 3 6 9 18 31 62 93 157 186 279 314 471 558 942 1413 2826 4867 5573 9734 11146 14601 16719 29202 33438 43803 50157 87606 100314 172763 345526 518289 874961 1036578 1554867 1749922 2624883 3109734 5249766 7874649 15749298 27123791 54247582 81371373 162742746 244114119 488228238