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488726749 = 7316533449
BaseRepresentation
bin11101001000010…
…110000011011101
31021001121220001201
4131020112003131
52000103223444
6120255035501
715053052220
oct3510260335
91231556051
10488726749
11230967705
1211780bb91
137a338b34
1448c9d5b7
152cd8cdd4
hex1d2160dd

488726749 has 16 divisors (see below), whose sum is σ = 577612800. Its totient is φ = 404657280.

The previous prime is 488726731. The next prime is 488726773. The reversal of 488726749 is 947627884.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 488726749 - 213 = 488718557 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 488726749.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (488526749) 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, 139977 + ... + 143425.

It is an arithmetic number, because the mean of its divisors is an integer number (36100800).

Almost surely, 2488726749 is an apocalyptic number.

It is an amenable number.

488726749 is a deficient number, since it is larger than the sum of its proper divisors (88886051).

488726749 is a wasteful number, since it uses less digits than its factorization.

488726749 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4140.

The product of its digits is 5419008, while the sum is 55.

The square root of 488726749 is about 22107.1651054585. The cubic root of 488726749 is about 787.6900686428.

The spelling of 488726749 in words is "four hundred eighty-eight million, seven hundred twenty-six thousand, seven hundred forty-nine".

Divisors: 1 7 31 217 653 3449 4571 20243 24143 106919 141701 748433 2252197 15765379 69818107 488726749