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148912720 = 24511169219
BaseRepresentation
bin10001110000000…
…11101001010000
3101101012112211221
420320003221100
5301110201340
622435414424
73455510605
oct1070035120
9341175757
10148912720
117706a370
1241a54414
1324b0b048
1415ac46ac
15d11744a
hex8e03a50

148912720 has 40 divisors (see below), whose sum is σ = 377699040. Its totient is φ = 54149760.

The previous prime is 148912717. The next prime is 148912723. The reversal of 148912720 is 27219841.

It is an interprime number because it is at equal distance from previous prime (148912717) and next prime (148912723).

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (148912723) 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, 83730 + ... + 85489.

It is an arithmetic number, because the mean of its divisors is an integer number (9442476).

Almost surely, 2148912720 is an apocalyptic number.

148912720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

148912720 is an abundant number, since it is smaller than the sum of its proper divisors (228786320).

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

148912720 is a wasteful number, since it uses less digits than its factorization.

148912720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 169243 (or 169237 counting only the distinct ones).

The product of its (nonzero) digits is 8064, while the sum is 34.

The square root of 148912720 is about 12202.9799639268. The cubic root of 148912720 is about 530.0423841742.

The spelling of 148912720 in words is "one hundred forty-eight million, nine hundred twelve thousand, seven hundred twenty".

Divisors: 1 2 4 5 8 10 11 16 20 22 40 44 55 80 88 110 176 220 440 880 169219 338438 676876 846095 1353752 1692190 1861409 2707504 3384380 3722818 6768760 7445636 9307045 13537520 14891272 18614090 29782544 37228180 74456360 148912720