Search a number
-
+
149928800 = 2552741653
BaseRepresentation
bin10001110111110…
…11101101100000
3101110010011122112
420323323231200
5301340210200
622513254452
73500242130
oct1073735540
9343104575
10149928800
11776a37aa
1242264428
13250a5688
1415caaac0
15d268535
hex8efbb60

149928800 has 144 divisors (see below), whose sum is σ = 429160032. Its totient is φ = 50073600.

The previous prime is 149928799. The next prime is 149928809. The reversal of 149928800 is 8829941.

149928800 = T167 + T168 + ... + T966.

It is a Harshad number since it is a multiple of its sum of digits (41).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (149928809) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 229274 + ... + 229926.

It is an arithmetic number, because the mean of its divisors is an integer number (2980278).

Almost surely, 2149928800 is an apocalyptic number.

149928800 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 149928800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (214580016).

149928800 is an abundant number, since it is smaller than the sum of its proper divisors (279231232).

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

149928800 is a wasteful number, since it uses less digits than its factorization.

149928800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 721 (or 708 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 41.

The square root of 149928800 is about 12244.5416410742. The cubic root of 149928800 is about 531.2452031862.

The spelling of 149928800 in words is "one hundred forty-nine million, nine hundred twenty-eight thousand, eight hundred".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 32 35 40 41 50 56 70 80 82 100 112 140 160 164 175 200 205 224 280 287 328 350 400 410 560 574 653 656 700 800 820 1025 1120 1148 1306 1312 1400 1435 1640 2050 2296 2612 2800 2870 3265 3280 4100 4571 4592 5224 5600 5740 6530 6560 7175 8200 9142 9184 10448 11480 13060 14350 16325 16400 18284 20896 22855 22960 26120 26773 28700 32650 32800 36568 45710 45920 52240 53546 57400 65300 73136 91420 104480 107092 114275 114800 130600 133865 146272 182840 187411 214184 228550 229600 261200 267730 365680 374822 428368 457100 522400 535460 669325 731360 749644 856736 914200 937055 1070920 1338650 1499288 1828400 1874110 2141840 2677300 2998576 3656800 3748220 4283680 4685275 5354600 5997152 7496440 9370550 10709200 14992880 18741100 21418400 29985760 37482200 74964400 149928800