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149504320 = 2657312153
BaseRepresentation
bin10001110100101…
…00000101000000
3101102022121101001
420322110011000
5301233114240
622500221344
73463523440
oct1072240500
9342277331
10149504320
1177433899
124209a854
1324c873c4
1415bda120
15d1d289a
hex8e94140

149504320 has 112 divisors (see below), whose sum is σ = 420185088. Its totient is φ = 49582080.

The previous prime is 149504317. The next prime is 149504323. The reversal of 149504320 is 23405941.

It is an interprime number because it is at equal distance from previous prime (149504317) and next prime (149504323).

It is a tau number, because it is divible by the number of its divisors (112).

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149504323) 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, 68364 + ... + 70516.

Almost surely, 2149504320 is an apocalyptic number.

149504320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 149504320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (210092544).

149504320 is an abundant number, since it is smaller than the sum of its proper divisors (270680768).

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

149504320 is a wasteful number, since it uses less digits than its factorization.

149504320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2208 (or 2198 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

The square root of 149504320 is about 12227.1959172985. The cubic root of 149504320 is about 530.7433736185.

The spelling of 149504320 in words is "one hundred forty-nine million, five hundred four thousand, three hundred twenty".

Divisors: 1 2 4 5 7 8 10 14 16 20 28 31 32 35 40 56 62 64 70 80 112 124 140 155 160 217 224 248 280 310 320 434 448 496 560 620 868 992 1085 1120 1240 1736 1984 2153 2170 2240 2480 3472 4306 4340 4960 6944 8612 8680 9920 10765 13888 15071 17224 17360 21530 30142 34448 34720 43060 60284 66743 68896 69440 75355 86120 120568 133486 137792 150710 172240 241136 266972 301420 333715 344480 467201 482272 533944 602840 667430 688960 934402 964544 1067888 1205680 1334860 1868804 2135776 2336005 2411360 2669720 3737608 4271552 4672010 4822720 5339440 7475216 9344020 10678880 14950432 18688040 21357760 29900864 37376080 74752160 149504320