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148648761 = 3219869291
BaseRepresentation
bin10001101110000…
…11001100111001
3101100201010202200
420313003030321
5301023230021
622430020413
73453331212
oct1067031471
9340633680
10148648761
11769aa018
1241947709
1324a47b61
1415a56409
15d0b4126
hex8dc3339

148648761 has 12 divisors (see below), whose sum is σ = 226015920. Its totient is φ = 93883320.

The previous prime is 148648757. The next prime is 148648763. The reversal of 148648761 is 167846841.

148648761 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 148648761 - 22 = 148648757 is a prime.

It is not an unprimeable number, because it can be changed into a prime (148648763) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 434475 + ... + 434816.

It is an arithmetic number, because the mean of its divisors is an integer number (18834660).

Almost surely, 2148648761 is an apocalyptic number.

It is an amenable number.

148648761 is a deficient number, since it is larger than the sum of its proper divisors (77367159).

148648761 is a wasteful number, since it uses less digits than its factorization.

148648761 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869316 (or 869313 counting only the distinct ones).

The product of its digits is 258048, while the sum is 45.

The square root of 148648761 is about 12192.1598168659. The cubic root of 148648761 is about 529.7290189451.

The spelling of 148648761 in words is "one hundred forty-eight million, six hundred forty-eight thousand, seven hundred sixty-one".

Divisors: 1 3 9 19 57 171 869291 2607873 7823619 16516529 49549587 148648761