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354005431220 = 22577229349787
BaseRepresentation
bin1010010011011000101…
…11100011001110110100
31020211202020200012001102
411021230113203032310
521300000342244340
6430343340545232
734401404342210
oct5115427431664
91224666605042
10354005431220
11127150923091
1258737852218
13274c867217c
14131c37db940
15931d9ed215
hex526c5e33b4

354005431220 has 48 divisors (see below), whose sum is σ = 849732992640. Its totient is φ = 121356153984.

The previous prime is 354005431217. The next prime is 354005431231. The reversal of 354005431220 is 22134500453.

It is a happy number.

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, 837167 + ... + 1186953.

It is an arithmetic number, because the mean of its divisors is an integer number (17702770680).

Almost surely, 2354005431220 is an apocalyptic number.

It is an amenable number.

354005431220 is an abundant number, since it is smaller than the sum of its proper divisors (495727561420).

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

354005431220 is a wasteful number, since it uses less digits than its factorization.

354005431220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 357032 (or 357030 counting only the distinct ones).

The product of its (nonzero) digits is 14400, while the sum is 29.

Adding to 354005431220 its reverse (22134500453), we get a palindrome (376139931673).

The spelling of 354005431220 in words is "three hundred fifty-four billion, five million, four hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 7 10 14 20 28 35 70 140 7229 14458 28916 36145 50603 72290 101206 144580 202412 253015 349787 506030 699574 1012060 1399148 1748935 2448509 3497870 4897018 6995740 9794036 12242545 24485090 48970180 2528610223 5057220446 10114440892 12643051115 17700271561 25286102230 35400543122 50572204460 70801086244 88501357805 177002715610 354005431220