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145123310400 = 2635230234023
BaseRepresentation
bin1000011100101000000…
…1011111101101000000
3111212120220010000101020
42013022001133231000
54334203031413100
6150400240105440
713325201533215
oct2071201375500
9455526100336
10145123310400
1156601364072
1224161605280
13108ba136503
147049c2bb0c
153b958d45a0
hex21ca05fb40

145123310400 has 84 divisors (see below), whose sum is σ = 476125409952. Its totient is φ = 38699548160.

The previous prime is 145123310399. The next prime is 145123310413. The reversal of 145123310400 is 4013321541.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 15112212 + ... + 15121811.

Almost surely, 2145123310400 is an apocalyptic number.

145123310400 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

145123310400 is an abundant number, since it is smaller than the sum of its proper divisors (331002099552).

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

145123310400 is a wasteful number, since it uses less digits than its factorization.

145123310400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30234048 (or 30234033 counting only the distinct ones).

The product of its (nonzero) digits is 1440, while the sum is 24.

Adding to 145123310400 its reverse (4013321541), we get a palindrome (149136631941).

The spelling of 145123310400 in words is "one hundred forty-five billion, one hundred twenty-three million, three hundred ten thousand, four hundred".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 25 30 32 40 48 50 60 64 75 80 96 100 120 150 160 192 200 240 300 320 400 480 600 800 960 1200 1600 2400 4800 30234023 60468046 90702069 120936092 151170115 181404138 241872184 302340230 362808276 453510345 483744368 604680460 725616552 755850575 907020690 967488736 1209360920 1451233104 1511701150 1814041380 1934977472 2267551725 2418721840 2902466208 3023402300 3628082760 4535103450 4837443680 5804932416 6046804600 7256165520 9070206900 9674887360 12093609200 14512331040 18140413800 24187218400 29024662080 36280827600 48374436800 72561655200 145123310400