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148381730 = 2572119739
BaseRepresentation
bin10001101100000…
…10000000100010
3101100012120110122
420312002000202
5300441203410
622420200242
73451136540
oct1066020042
9340176418
10148381730
1176837432
1241839082
1324983453
14159c6d90
15d05ee55
hex8d82022

148381730 has 16 divisors (see below), whose sum is σ = 305242560. Its totient is φ = 50873712.

The previous prime is 148381721. The next prime is 148381733. The reversal of 148381730 is 37183841.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is not an unprimeable number, because it can be changed into a prime (148381733) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1059800 + ... + 1059939.

It is an arithmetic number, because the mean of its divisors is an integer number (19077660).

Almost surely, 2148381730 is an apocalyptic number.

148381730 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

148381730 is an abundant number, since it is smaller than the sum of its proper divisors (156860830).

148381730 is a wasteful number, since it uses less digits than its factorization.

148381730 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2119753.

The product of its (nonzero) digits is 16128, while the sum is 35.

The square root of 148381730 is about 12181.2039634841. The cubic root of 148381730 is about 529.4116290220.

The spelling of 148381730 in words is "one hundred forty-eight million, three hundred eighty-one thousand, seven hundred thirty".

Divisors: 1 2 5 7 10 14 35 70 2119739 4239478 10598695 14838173 21197390 29676346 74190865 148381730