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145726000 = 2453721487
BaseRepresentation
bin10001010111110…
…01101000110000
3101011012122111021
420223321220300
5244301213000
622243225224
73416436100
oct1053715060
9334178437
10145726000
1175293112
1240978214
1324263704
14154d5200
15cbd811a
hex8af9a30

145726000 has 120 divisors (see below), whose sum is σ = 410170176. Its totient is φ = 49929600.

The previous prime is 145725977. The next prime is 145726027. The reversal of 145726000 is 627541.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 97257 + ... + 98743.

Almost surely, 2145726000 is an apocalyptic number.

145726000 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 145726000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205085088).

145726000 is an abundant number, since it is smaller than the sum of its proper divisors (264444176).

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

145726000 is a wasteful number, since it uses less digits than its factorization.

145726000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1524 (or 1501 counting only the distinct ones).

The product of its (nonzero) digits is 1680, while the sum is 25.

The square root of 145726000 is about 12071.7024482879. The cubic root of 145726000 is about 526.2341336479.

The spelling of 145726000 in words is "one hundred forty-five million, seven hundred twenty-six thousand".

Divisors: 1 2 4 5 7 8 10 14 16 20 25 28 35 40 49 50 56 70 80 98 100 112 125 140 175 196 200 245 250 280 350 392 400 490 500 560 700 784 875 980 1000 1225 1400 1487 1750 1960 2000 2450 2800 2974 3500 3920 4900 5948 6125 7000 7435 9800 10409 11896 12250 14000 14870 19600 20818 23792 24500 29740 37175 41636 49000 52045 59480 72863 74350 83272 98000 104090 118960 145726 148700 166544 185875 208180 260225 291452 297400 364315 371750 416360 520450 582904 594800 728630 743500 832720 1040900 1165808 1301125 1457260 1487000 1821575 2081800 2602250 2914520 2974000 3643150 4163600 5204500 5829040 7286300 9107875 10409000 14572600 18215750 20818000 29145200 36431500 72863000 145726000