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1530157948 = 221134776317
BaseRepresentation
bin101101100110100…
…0101101101111100
310221122021002002121
41123031011231330
511113210023243
6411500332324
752630061614
oct13315055574
93848232077
101530157948
11715809350
123685440a4
131b5021107
14107313a44
158e5051ed
hex5b345b7c

1530157948 has 12 divisors (see below), whose sum is σ = 2921210712. Its totient is φ = 695526320.

The previous prime is 1530157939. The next prime is 1530157949. The reversal of 1530157948 is 8497510351.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1530157949) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17388115 + ... + 17388202.

It is an arithmetic number, because the mean of its divisors is an integer number (243434226).

Almost surely, 21530157948 is an apocalyptic number.

It is an amenable number.

1530157948 is a deficient number, since it is larger than the sum of its proper divisors (1391052764).

1530157948 is a wasteful number, since it uses less digits than its factorization.

1530157948 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34776332 (or 34776330 counting only the distinct ones).

The product of its (nonzero) digits is 151200, while the sum is 43.

The square root of 1530157948 is about 39117.2333888786. The cubic root of 1530157948 is about 1152.3350031611.

The spelling of 1530157948 in words is "one billion, five hundred thirty million, one hundred fifty-seven thousand, nine hundred forty-eight".

Divisors: 1 2 4 11 22 44 34776317 69552634 139105268 382539487 765078974 1530157948