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144470046140 = 22575711807231
BaseRepresentation
bin1000011010001100010…
…1011111010110111100
3111210220100212202021122
42012203011133112330
54331333312434030
6150211342250112
713303050062540
oct2064305372674
9453810782248
10144470046140
11562a6635a52
1223bba886938
13108149ab804
146dc717ba20
153b583948e5
hex21a315f5bc

144470046140 has 48 divisors (see below), whose sum is σ = 347335532544. Its totient is φ = 49445812800.

The previous prime is 144470046089. The next prime is 144470046151. The reversal of 144470046140 is 41640074441.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 144470046140.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823676 + ... + 983555.

It is an arithmetic number, because the mean of its divisors is an integer number (7236156928).

Almost surely, 2144470046140 is an apocalyptic number.

144470046140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

144470046140 is an abundant number, since it is smaller than the sum of its proper divisors (202865486404).

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

144470046140 is a wasteful number, since it uses less digits than its factorization.

144470046140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1807818 (or 1807816 counting only the distinct ones).

The product of its (nonzero) digits is 43008, while the sum is 35.

The spelling of 144470046140 in words is "one hundred forty-four billion, four hundred seventy million, forty-six thousand, one hundred forty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 571 1142 2284 2855 3997 5710 7994 11420 15988 19985 39970 79940 1807231 3614462 7228924 9036155 12650617 18072310 25301234 36144620 50602468 63253085 126506170 253012340 1031928901 2063857802 4127715604 5159644505 7223502307 10319289010 14447004614 20638578020 28894009228 36117511535 72235023070 144470046140