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10215400042554 = 2373722728958663
BaseRepresentation
bin1001010010100111010101…
…0010100111000000111010
31100011120201210102011020020
42110221311102213000322
52314332114402330204
633420520123311310
72103016064450460
oct224516522470072
940146653364206
1010215400042554
113289366011113
12118b99097b536
13591400b4b4c5
142745dc60a830
1512aad539cbd9
hex94a754a703a

10215400042554 has 64 divisors (see below), whose sum is σ = 24086195030016. Its totient is φ = 2827292088384.

The previous prime is 10215400042553. The next prime is 10215400042567. The reversal of 10215400042554 is 45524000451201.

It is a happy number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (10215400042553) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14126574 + ... + 14832089.

It is an arithmetic number, because the mean of its divisors is an integer number (376346797344).

Almost surely, 210215400042554 is an apocalyptic number.

10215400042554 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

10215400042554 is an abundant number, since it is smaller than the sum of its proper divisors (13870794987462).

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

10215400042554 is a wasteful number, since it uses less digits than its factorization.

10215400042554 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28958939.

The product of its (nonzero) digits is 32000, while the sum is 33.

Adding to 10215400042554 its reverse (45524000451201), we get a palindrome (55739400493755).

The spelling of 10215400042554 in words is "ten trillion, two hundred fifteen billion, four hundred million, forty-two thousand, five hundred fifty-four".

Divisors: 1 2 3 6 7 14 21 37 42 74 111 222 227 259 454 518 681 777 1362 1554 1589 3178 4767 8399 9534 16798 25197 50394 58793 117586 176379 352758 28958663 57917326 86875989 173751978 202710641 405421282 608131923 1071470531 1216263846 2142941062 3214411593 6428823186 6573616501 7500293717 13147233002 15000587434 19720849503 22500881151 39441699006 45001762302 46015315507 92030631014 138045946521 243223810537 276091893042 486447621074 729671431611 1459342863222 1702566673759 3405133347518 5107700021277 10215400042554